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College data, every sitting

NIE Pass Rates
2021 to 2026

Every National Investigators' Exam result the College of Policing has published that we could open: 17 sittings from September 2021 to September 2026, 25,122 candidates in all. National history, a sortable table by force, the sex and ethnicity figures as printed, the College's own caution on comparing forces, and what the numbers can and cannot tell you.

Independent information, not advice · Sources checked 11 October 2026 · England and Wales unless stated

Short answer: what is the NIE pass rate?

63.3% in the latest published sitting (September 2026: 665 of 1,050 passed). Across 17 sittings since September 2021 the pooled rate is 58.8%, ranging from 51.9% (November 2025) to 68.3% (March 2022). The pass mark was the same 55.7% (39 of 70) every time, so roughly two in five candidates fail in a typical sitting.

NIE pass rates at a glance

The National Investigators' Exam is the 80-question legal knowledge exam that opens phase 2 of the professionalising investigations programme (PIP2). After each sitting the College of Policing publishes a short "results and analysis overview": the overall success rate, the split by sex and ethnicity, and a table by force. Older overviews tend to disappear from the College's site when a new one is posted. This page puts every one we could find in one place, with a link to the PDF behind each number.

The key numbers, from the College's results overviews
MeasureFigure
Latest published sittingSeptember 2026: 1,050 sat, 665 passed, 63.3%
Sitting before thatMarch 2026: 1,633 sat, 1,040 passed, 63.7%
Highest in the seriesMarch 2022: 68.3%
Lowest in the seriesNovember 2025: 51.9%
All sittings pooled14,779 of 25,122 passed: 58.8% across 17 sittings
Exceptional grade658 candidates, 2.6% of everyone who sat
Pass mark used in every sitting55.7% (39 of 70 scored questions); exceptional 85.7%
Biggest and smallest sittingsNovember 2023 (1,859) and September 2026 (1,050)
Success rate and pass rate are the same thing here

The College's overviews talk about the "success rate": everyone who reached the pass mark, including those awarded the exceptional grade. We call it the pass rate because that is what candidates search for. The exceptional candidates are inside the passed figure, not added on top.

If you are preparing for a sitting, start with the arithmetic of the pass mark in NIE pass mark explained, and check the dates in NIE exam dates 2026. The rest of this page is about what happened to everyone else.

Every published sitting, newest first

Each row is copied from one College PDF: the candidates who attended and passed are the totals of the force table, the rate is the printed overall success rate, and the exceptional figure is the printed count in the performance band chart. We checked that every printed rate equals passed divided by sat.

National Investigators' Exam results, September 2021 to September 2026 (College of Policing)
SittingSatPassedPass rateExceptionalDid not passSource
September 20261,05066563.3%23 (2.2%)385PDF
March 20261,6331,04063.7%37 (2.3%)593PDF
November 20251,29467251.9%33 (2.6%)622PDF
September 20251,31879260.1%35 (2.7%)526PDF
June 20251,50082254.8%39 (2.6%)678PDF
March 20251,61294158.4%52 (3.2%)671PDF
November 20241,54589157.7%29 (1.9%)654PDF
September 20241,41191064.5%41 (2.9%)501PDF
June 20241,8001,01156.2%35 (1.9%)789PDF
March 20241,7951,07960.1%41 (2.3%)716PDF
November 20231,8591,03855.8%44 (2.4%)821PDF
September 20231,39774353.2%19 (1.4%)654PDF
June 20231,8541,10659.7%48 (2.6%)748PDF
November 20221,52995762.6%64 (4.2%)572PDF
March 20221,21883268.3%67 (5.5%)386PDF
November 20211,22565053.1%25 (2.0%)575PDF
September 20211,08263058.2%26 (2.4%)452PDF

4 of the 17 sittings came in below 55%, and 7 reached 60% or more. The middle of the range is close to the pooled figure of 58.8%; the simple average of the 17 sitting rates is 58.9%, slightly different because big and small sittings count equally in a simple average.

Gaps in the series

Four sittings a year have been held since at least 2022, but we could not find an overview for June 2022, September 2022, March 2023 or June 2026, and we did not look before September 2021. The reasons are in how we built this. We have left those sittings out rather than estimate them, so the year-by-year figures below cover only the sittings listed.

Year by year

Pooling the sittings in each calendar year smooths out the swings between individual papers. Each year's figure is the passes divided by the candidates for the sittings we have in that year, so years with missing sittings are less complete.

NIE pass rate by calendar year, pooled (sittings we could read)
YearSittings includedSatPassedPooled pass rate
2021September, November2,3071,28055.5%
2022March, November2,7471,78965.1%
2023June, September, November5,1102,88756.5%
2024March, June, September, November6,5513,89159.4%
2025March, June, September, November5,7243,22756.4%
2026March, September2,6831,70563.5%

The honest reading is that the NIE pass rate has sat in a band from the low fifties to the mid sixties for five years, with no steady rise or fall. Single sittings jump around more than years do: November 2025 at 51.9% was followed by March 2026 at 63.7%. Anyone who tells you the exam is "getting harder" or "getting easier" from one sitting is reading noise.

Why the pass rate moves when the pass mark does not

The pass mark is an absolute standard: 39 of the 70 scored questions, the same in every sitting we read. It is not a quota, so there is no fixed share of candidates who must fail. The rate moves for reasons like these, none of which the College quantifies:

  • Who sits. Each sitting has a different mix of forces, entry routes, first attempts and resits. The overviews do not split any of these out.
  • How many sit. Sittings range from 1,050 (September 2026) to 1,859 (November 2023) candidates. When a large force or programme sends a big cohort, its result moves the national figure.
  • The paper itself. Each sitting is a different set of 80 questions, weighted to the College's blueprint. The College removes the 10 questions that performed least well before marking, which limits but cannot remove differences between papers.
  • Preparation time. The handbook recommends at least 14 weeks of independent study. How much of that candidates actually get around shifts varies, and no published data measures it.
  • The debrief panel's checks. The panel compares each year's results with previous years to make sure delivery was fair, and can alter the pass mark in exceptional circumstances, for example a significant deviation in the success rate. None of the overviews we read records an altered pass mark.

What does not drive the rate: a curve. You are not competing with the people sitting alongside you. If every candidate reached 39 of 70, every candidate would pass.

NIE pass rate by force: the interactive table

Choose one sitting to see every force and body that nominated candidates (tap a column heading to sort, or type part of a name to filter), or choose one force to see it across all 16 sittings beside the national rate. Without JavaScript the table shows the latest sitting sorted by name. The CSV button downloads every row with its source link.

National Investigators' Exam, September 2026: candidates who sat, passed and success rate by force, as published by the College of Policing
Avon and Somerset12758.3%
Bedfordshire251664.0%
British Transport PoliceSuppressedSuppressed40.0%as printed
Cambridgeshire201365.0%
CheshireSuppressedSuppressed80.0%as printed
City of LondonSuppressedSuppressed66.7%as printed
Cleveland171164.7%
CumbriaSuppressedSuppressed69.2%as printed
DerbyshireSuppressedSuppressed75.0%as printed
Devon and Cornwall251456.0%
DorsetSuppressedSuppressed100.0%as printed
DurhamSuppressedSuppressed50.0%as printed
Dyfed-PowysSuppressedSuppressed62.5%as printed
Essex211152.4%
GloucestershireSuppressedSuppressed60.0%as printed
Greater Manchester392564.1%
GwentSuppressedSuppressed75.0%as printed
Hampshire and Isle of WightSuppressedSuppressed27.3%as printed
Hertfordshire241354.2%
Humberside341750.0%
Independent Office for Police ConductSuppressedSuppressed100.0%as printed
Kent20840.0%
LancashireSuppressedSuppressed81.0%as printed
LeicestershireSuppressedSuppressed75.0%as printed
LincolnshireSuppressedSuppressed80.0%as printed
Merseyside332575.8%
Metropolitan Police Service1437854.5%
Ministry of Defence PoliceSuppressedSuppressed50.0%as printed
NorfolkSuppressedSuppressed40.0%as printed
North WalesSuppressedSuppressed100.0%as printed
North YorkshireSuppressedSuppressed100.0%as printed
NorthamptonshireSuppressedSuppressed60.0%as printed
Northumbria352468.6%
NottinghamshireSuppressedSuppressed60.0%as printed
Police NowSuppressedSuppressed80.0%as printed
South Wales292069.0%
South Yorkshire624572.6%
StaffordshireSuppressedSuppressed63.6%as printed
Suffolk12758.3%
Surrey19947.4%
Sussex372978.4%
Thames Valley392359.0%
WarwickshireSuppressedSuppressed83.3%as printed
West Mercia191263.2%
West Midlands1106357.3%
West Yorkshire664771.2%
WiltshireSuppressedSuppressed66.7%as printed
Total (as printed)1,05066563.3%

25 of 47 listed forces and bodies have suppressed counts in this sitting. The rows with counts add up to 841 sat and 517 passed, which is 209 and 148 short of the printed total because of the suppressed rows. We have not estimated the suppressed values. A rate marked "as printed" sits beside suppressed counts, so it may rest on a handful of people. The College filed this PDF under a June 2026 address and file name, but the document itself is the September 2026 overview. Source: College of Policing results overview, September 2026 (checked 11 October 2026).

College of Policing: "Comparison between force pass rates should be done with caution, due to the differences in the number of candidates taking the examination per force."

Built in your browser from the same data as the table. Suppressed cells are left empty.

Force names are normalised across sittings because the PDFs change them ("Avon and Somerset", "Avon and Somerset Constabulary", "Avon and Somerset Police"); the CSV keeps the name exactly as printed. Hampshire appears in later overviews as Hampshire and Isle of Wight Constabulary and is shown under that name throughout.

The five largest groups in September 2026

Largest published force counts, September 2026 (national rate 63.3%)
ForceSatPassedRateAgainst national
Metropolitan Police Service1437854.5%Below national
West Midlands1106357.3%Below national
West Yorkshire664771.2%Above national
South Yorkshire624572.6%Above national
Greater Manchester392564.1%Above national

In September 2026, 25 of the 47 listed forces and bodies had their counts suppressed, and 5 of the forces with printed counts had fewer than 20 candidates. Across the 16 sittings in the table, between 10 and 30 rows per sitting are suppressed. The tables also list bodies that are not territorial police forces, such as the Independent Office for Police Conduct, the National Crime Agency, Guernsey, the Defence Serious Crime Command and Police Now, because their investigators sit the same exam.

Comparing forces: the College's caution, and why it matters

The College of Policing, under every force table

"Comparison between force pass rates should be done with caution, due to the differences in the number of candidates taking the examination per force."

"Please note that where candidate numbers are low, these have been removed to ensure that no candidates can be personally identified from this data. Low figures in terms of pass or fail rates could, when paired with other information in the public domain, result in the identification of individuals. To avoid this, we will not release information where identification could result. We are unable to confirm the threshold used to redact data, as this in itself may allow calculations to be made from other information released in the public domain."

Both points bite hard for the NIE, because many forces send only a few candidates to each sitting. One candidate is worth a lot of percentage points in a small group:

How much one person moves a force's rate (illustrative arithmetic, not College data)
Group sizeOne candidate is worthExample rateOne more pass
5 candidates20.0%3 of 5 = 60.0%4 of 5 = 80.0%
10 candidates10.0%6 of 10 = 60.0%7 of 10 = 70.0%
20 candidates5.0%12 of 20 = 60.0%13 of 20 = 65.0%
50 candidates2.0%30 of 50 = 60.0%31 of 50 = 62.0%
150 candidates0.7%90 of 150 = 60.0%91 of 150 = 60.7%

So a force with 10 candidates can swing from 60% to 70% because one person had a better day. The printed rates beside suppressed counts are the most fragile of all: the College tells you only that the number was small enough to hide.

What a force's rate cannot tell you

  • Whether the force gives study time, courses or nothing. The overviews do not say.
  • Whether its candidates were on their first attempt. Resitters are counted with everyone else.
  • Which route they came through. DHEP, Police Now, in-service PIP2 and police staff investigators are not separated.
  • Whether this sitting is typical. Use the "one force, all sittings" view before drawing any conclusion.

We do not rank forces on this page and we do not say any force prepares candidates better or worse. The numbers are the numbers; the explanations are not published.

The Metropolitan Police Service and the national figure

The Met is by far the largest single group in most sittings, so its result moves the national rate. Where its counts are printed, this table shows its share of candidates, its rate, the national rate and the rate for everyone else (national totals minus the Met's printed counts). It is arithmetic on published figures, not an explanation of either number.

Metropolitan Police Service against the rest, sittings where its counts are printed
SittingMet sat (share)Met rateNational rateEveryone else
September 2026143 (13.6% of all)54.5%63.3%64.7%
March 2026313 (19.2% of all)60.4%63.7%64.5%
November 2025226 (17.5% of all)41.2%51.9%54.2%
September 2025243 (18.4% of all)51.4%60.1%62.0%
March 2025264 (16.4% of all)49.6%58.4%60.1%
November 2024354 (22.9% of all)50.3%57.7%59.9%
September 2024293 (20.8% of all)59.0%64.5%65.9%
June 2024214 (11.9% of all)46.3%56.2%57.5%
March 2024231 (12.9% of all)59.3%60.1%60.2%
November 2023321 (17.3% of all)56.4%55.8%55.7%
September 2023339 (24.3% of all)55.8%53.2%52.4%
June 2023505 (27.2% of all)58.8%59.7%60.0%
November 2022441 (28.8% of all)63.0%62.6%62.4%
March 2022305 (25.0% of all)62.3%68.3%70.3%
November 2021212 (17.3% of all)45.3%53.1%54.7%
September 2021218 (20.1% of all)50.9%58.2%60.1%

In 13 of these 16 sittings the Met's printed rate was below the national rate. In September 2026 it supplied 13.6% of all candidates. If you are a Met candidate, the useful comparison is not with another force but with the pass mark: 39 of 70, the same for everyone.

Six large forces across the last six force tables

One sitting tells you little about a force. Six in a row tell you a bit more. The table shows the printed rate for six of the forces that usually send the most candidates, with the number who sat in brackets, across the six most recent sittings in the force table. An asterisk marks a rate printed beside suppressed counts.

Printed success rate (candidates) for six large forces, most recent six force tables
ForceNovember 2024March 2025September 2025November 2025March 2026September 2026
Metropolitan Police Service50.3% (354)49.6% (264)51.4% (243)41.2% (226)60.4% (313)54.5% (143)
West Midlands53.2% (47)65.7% (108)57.8% (128)42.4% (92)58.8% (85)57.3% (110)
West Yorkshire65.3% (72)49.3% (75)53.3% (45)47.4% (57)54.7% (86)71.2% (66)
Greater Manchester63.0% (46)72.5% (69)62.5% (48)56.8% (44)69.5% (59)64.1% (39)
Thames Valley70.6% (34)62.9% (62)78.6% (42)60.0% (60)76.1% (67)59.0% (39)
South Yorkshire40.0% (20)57.1% (42)74.0% (77)55.6% (18)68.2% (22)72.6% (62)
National57.7%58.4%60.1%51.9%63.7%63.3%

Read along a row rather than down a column. Most large forces sit above the national rate in some sittings and below it in others, which is what you would expect if much of the movement is down to who sits each time. A force that is below the national figure in most sittings, as the Met has been (13 of the 16 sittings where its counts are printed), is a pattern in the numbers, but the overviews still give no reason for it. The "one force, all sittings" view in the table above shows any force across all 16 sittings.

How NIE pass rates compare with the promotion exams

Many readers will later sit the sergeants' or inspectors' legal exam (NPPF Step 2), which the College also runs online. The exams test different Manuals for different roles, so this is context, not a league table. Figures are the latest published sitting of each, from the College's own overviews.

NIE and NPPF Step 2 exams side by side (College of Policing, latest published results)
NIESergeants (NPPF)Inspectors (NPPF)
Questions sat80150150
Time2 hours3 hours3 hours
Pass mark55.7%55%65%
Exceptional from85.7%75%85%
Latest published sittingSeptember 2026March 2026May 2026
Candidates1,0503,2151,739
Pass rate63.3%58.5%37.0%
Exceptional share2.2%12.0%2.3%

Two differences matter for a candidate. The NIE is shorter, so each question is a bigger share of your score: one scored NIE question is worth about 1.4 percentage points, against about 0.7 on the 140-question promotion papers. And the NIE's exceptional grade is set much higher than the sergeants', at 85.7%, which is why so few NIE candidates reach it. More on the promotion exams in sergeant and inspector exam pass rates.

Pass rates by sex and ethnicity, as published

Each overview gives success rates for female and male candidates and for white and ethnic minority candidates, with the group sizes. The table copies the successful share for each group, with the number of candidates in brackets. The College groups "not disclosed" and "prefer not to say" differently from one sitting to the next, so we have left those groups out rather than mix definitions.

NIE success rate by group (number of candidates), as printed by the College of Policing
SittingFemaleMaleWhiteEthnic minorityGap, white minus ethnic minority
September 202661.7% (580)63.7% (441)63.5% (874)59.1% (132)4.4 pts
March 202662.7% (919)64.9% (712)63.7% (1,383)58.8% (165)4.9 pts
November 202550.1% (751)53.6% (519)53.5% (1,056)36.1% (144)17.4 pts
September 202558.7% (753)61.4% (549)60.5% (1,087)54.8% (157)5.7 pts
June 202553.8% (861)55.8% (626)56.5% (1,254)37.9% (153)18.6 pts
March 202557.6% (922)59.1% (675)60.7% (1,375)41.7% (139)19.0 pts
November 202455.4% (796)60.6% (589)59.0% (1,220)46.3% (121)12.7 pts
September 202466.6% (662)63.9% (446)67.1% (975)45.6% (90)21.5 pts
June 202455.4% (1,082)56.8% (704)58.0% (1,533)40.2% (184)17.8 pts
March 202457.8% (1,015)62.5% (753)61.9% (1,517)42.4% (170)19.5 pts
November 202353.8% (1,034)58.0% (800)56.4% (1,538)43.8% (192)12.6 pts
September 202353.3% (752)52.7% (641)55.3% (1,162)36.5% (156)18.8 pts
June 202360.1% (1,077)58.8% (770)61.2% (1,555)48.1% (185)13.1 pts
November 202262.9% (847)61.6% (596)63.7% (1,225)52.2% (157)11.5 pts
March 202271.9% (673)62.6% (460)70.1% (981)53.3% (107)16.8 pts
November 202152.5% (650)52.7% (495)54.7% (1,008)37.6% (117)17.1 pts
September 202160.1% (526)54.5% (477)59.6% (858)44.3% (106)15.3 pts

What the figures show

  • Ethnicity. In every one of the 17 sittings, the printed success rate for candidates from an ethnic minority group was lower than for white candidates. The gap ranged from 4.4 to 21.5 percentage points and was 4.4 points in September 2026. Ethnic minority groups are small in each sitting (between 90 and 192 candidates), so single-sitting gaps move a lot; the consistency across sittings is the stronger signal.
  • Sex. No consistent pattern. Women had the higher rate in 6 sittings and men in 11, and the difference was never more than 9.3 points.
  • Causes. The overviews give none, and we do not offer any. The College states that it collects these figures to monitor potential barriers. If you want support, ask your force's NIE liaison contact or staff network what is available; some forces run targeted study support, but we have not verified which.

Some printed pairs do not add to exactly 100% (November 2023 shows 46.7% unsuccessful and 53.8% successful for women); we copy the successful figure as printed. Group sizes do not always add up to the sitting total because undisclosed groups are left out.

The exceptional grade: how rare is it?

Candidates scoring 85.7% or more (60 of 70) are awarded the exceptional grade. Across the sittings we read, 658 of 25,122 candidates got it, 2.6%. The share is in the "Exceptional" column of the history table: it has ranged from 1.4% to 5.5% of a sitting.

The grade appears on your feedback report. We found nothing in the handbook that gives an exceptional grade any different standing in PIP2 from a pass, so treat it as recognition rather than a requirement. The gap between the two is large: 21 more correct answers out of 70.

What the pass rates mean for your own attempt

A national pass rate is a description of a crowd, not a forecast for you. Some practical points:

Aim well above the line The pass mark is 39 of 70. Because you will not know which 10 questions are removed, a practice score that only just clears 55.7% leaves no margin. The pass mark guide works through the arithmetic.
Use timed practice as your own pass rate Your scores on full timed papers (80 questions in 120 minutes) tell you far more than any force average. Our free NIE mini mock is a short scored start.
Weight your revision like the paper The College's own subject breakdown for the latest sitting is heavy on Part 1 of the Manual (powers and procedures). The NIE syllabus guide shows the split by part.
A fail is common and recoverable Roughly two in five candidates do not pass a typical sitting. You can usually resit at the next sitting, subject to force policy. See what happens if you fail the NIE.

For a structured approach, how to pass the NIE sets out a method built around shifts, and the free NIE revision timetable counts down to your sitting. If you want a large bank of checked practice questions and timed 80-question mocks weighted like the real paper, our own NIE exam prep toolkit is a paid option; it is not a substitute for the Blackstone's Investigators' Manual, which is the syllabus.

Questions to ask your force before you sit

The national figures cannot answer these, but your NIE liaison contact, crime training team or tutor often can:

  • When is our internal registration deadline for the sitting I am aiming at?
  • Do we get study time, and if so how much, and when in the run-up?
  • Is there a force or regional study group, crammer or mock exam I can join?
  • Does the force provide a quiet testing room on exam day if home is not suitable?
  • What is our policy on resits: when, how many, and what support comes with a second attempt?
  • If I am on a direct entry or Police Now route, what happens to my programme if I do not pass first time?
  • How do I get reasonable adjustments in place, and by when?
  • Who will see my result, and how does it feed into my PIP2 portfolio?

Our direct entry detective guide covers the route-specific questions in more depth.

Reading the figures: four scenarios

Illustrative examples, not real people, of how candidates often misread these numbers and what the data supports instead.

1. "My force came top, so I will be fine" A candidate sees their small force printed at 100% beside suppressed counts. That might be three people. The next sitting it could be 50%. Their own preparation is the only figure that applies to them.
2. "The pass rate fell, so the exam got harder" November 2025 came in at 51.9%. The very next sitting was 63.7%. The pass mark did not change. One sitting's dip says little about the next paper.
3. "Two in five fail, so it is a lottery" It is not a lottery: the score is yours, against a fixed line. What the fail rate tells you is that a large minority of trainee investigators reach exam day underprepared for an 80-question applied paper. Timed practice shows you which side of the line you are on before the day.
4. "I am in a group with a lower pass rate" The ethnicity and sex figures describe groups, not individuals, and the College gives no cause. If you want support, ask your force and staff networks what is offered; the pass mark you need is the same as everyone's.

How we built this page, and the quirks in the College's files

We downloaded every NIE results and analysis overview we could find on the College's asset server and in the Internet Archive, converted each PDF to text, and copied the figures. For the force tables we used a script that reads each row, then checked that the rows add up to the printed total once suppressed rows are allowed for, and that every printed rate equals passed divided by sat. No figure on this page is estimated.

File quirks we found, and what we did
SittingWhat is oddWhat we did
September 2026The PDF linked as "NIE results and analysis: September 2026" sits at a June 2026 address with a June 2026 file nameWe use it as September 2026, as its cover, footer and document code say. No June 2026 overview is online
November 2022The file is named Sep-2022-v2.0 but the document, its PDF title and the College's own link text all say November 2022We use it as November 2022. No September 2022 overview survives
June 2024Two versions exist: an unredacted "for forces" edition and a later redacted public editionWe use the redacted public edition, which has the same national totals
June 2025The only copy we found is an unredacted "for forces" editionNational totals are included. Force rows are left out so we do not republish counts the College normally suppresses
2021 and early 2022The College no longer serves these PDFsWe read them from Internet Archive copies of the College's own files
June 2022, March 2023We could not find an overviewLeft out rather than estimated

Check any figure yourself

  1. Open the PDF from the "Source" link in the history table (or the sources list at the foot of this page).
  2. On the "Results" page, the pie chart gives successful and unsuccessful counts with percentages; the bar beside it splits successful into exceptional and pass.
  3. Exceptional plus pass equals successful. That check is how we confirmed which printed number is which, because the charts' labels do not always line up when the PDF is converted to text.
  4. The total row at the foot of the force table gives sat, passed and the rate; it matches the charts in every overview we read.
  5. In the sex and ethnicity bars, the first figure is the unsuccessful share and the second the successful share. In the sittings we tested, multiplying each successful share by its group size and adding them reproduced the total passed, to within rounding.
  6. Force rows with "xx", "XXX" or "0.00" are suppressed counts, not zeros.

When the College publishes the overview for the next sitting, the data files behind this page are updated and every table and sentence here changes with them. Spotted a figure that does not match its PDF? Tell us through our corrections policy.

Common myths about NIE pass rates

"Only a fixed share are allowed to pass."The pass mark is an absolute 55.7%, applied to everyone. There is no quota.
"The pass mark changes every time."Every overview we read applied the same 55.7% cut score. The panel can change it only in exceptional circumstances.
"Most people fail the NIE."In the sittings we read, between 51.9% and 68.3% passed. Most people pass; a large minority do not.
"My force has a bad pass rate, so I will struggle."A force rate is a few dozen people on one day. Your result depends on your own score against 39 of 70.
"The November sitting is always the hardest."November sittings range from 51.9% to 62.6%. No month is consistently harder.
"Prep providers' pass rates are comparable to these."Any provider's claimed pass rate is its own figure on its own users. The College's figures are the only national ones. We publish none of our own because we have none.

What we could not verify

  • The missing sittings. We could not find overviews for June 2022, September 2022, March 2023 or June 2026, and we did not search before September 2021. The College may hold them; we have not asked.
  • First-attempt pass rates. The overviews do not separate first attempts from resits, so no official first-time pass rate exists in these documents. Figures quoted by programmes or providers are their own.
  • Pass rates by entry route. DHEP, Police Now, in-service PIP2 and police staff investigators are not split out. Police Now appears as a line in the force tables, usually with suppressed counts.
  • The suppression threshold. The College does not disclose it, by design, so we cannot say how small a suppressed count is.
  • Why the rates differ. Between sittings, forces or groups, no cause is published, and we do not infer one.
  • The pass mark staying the same. Every overview we read used 55.7%. We cannot rule out a different cut score in a sitting whose overview we could not find, although we have no reason to think one was used.
Quick answers

Frequently Asked Questions

What is the NIE pass rate?

In the latest published sitting, September 2026, 665 of 1,050 candidates passed: 63.3%. Across the 17 sittings we could read from September 2021 to September 2026, 14,779 of 25,122 candidates passed, a pooled rate of 58.8%. Every figure comes from the College of Policing's results and analysis overview for that sitting.

What percentage of people fail the National Investigators' Exam?

Across the sittings we read, 10,343 of 25,122 candidates did not pass, about 41.2%. In September 2026 it was 385 of 1,050. Put simply, roughly two in five candidates fail in a typical sitting.

What was the highest NIE pass rate?

March 2022, at 68.3% (832 of 1,218). The lowest was November 2025, at 51.9% (672 of 1,294). The same 55.7% pass mark was applied in both.

Has the NIE pass mark changed between sittings?

Not in any sitting we read. Every overview from September 2021 to September 2026 says an absolute cut score of 55.7% was applied to all candidates, with 85.7% for the exceptional grade. The handbook lets the debrief panel alter the pass mark in exceptional circumstances, but none of these overviews records that happening.

Which force has the best NIE pass rate?

The College publishes a rate for every force that nominated candidates, but it warns that comparisons between forces should be done with caution because the number of candidates differs so much. Many small forces have their counts suppressed and a rate built on a few people, so a force at the top of one sitting is often in the middle of the next. Use the interactive table on this page to see a force across every sitting.

What is the Met's NIE pass rate?

In September 2026 the Metropolitan Police Service had 143 candidates and a printed rate of 54.5%, against 63.3% nationally. In 13 of the 16 sittings where its counts were printed, its rate was below the national rate. Because it is the largest single group, it pulls the national figure.

Why is the NIE pass rate different each sitting?

The pass mark is fixed, so the rate moves with the people sitting and the paper on the day. Each sitting has a different mix of forces, routes and first or repeat attempts, and candidate numbers swing from around a thousand to nearly two thousand. The College does not publish reasons for the changes, and nor do we have data to give one.

Do Police Now and direct entry detectives pass more often?

Police Now appears as its own line in the College's force tables, but its counts are usually suppressed, so only a printed rate on a small number is available. The College does not publish results by entry route (DHEP, Police Now, PIP2 in service or police staff), so we cannot compare routes from official data.

Is there a gap in NIE pass rates by ethnicity?

In every one of the 17 overviews we read, the printed success rate for candidates from an ethnic minority group was lower than for white candidates. The gap ranged from 4.4 to 21.5 percentage points and was 4.4 points in September 2026. The College publishes the figures without giving reasons, and we do not speculate about causes.

Do men or women pass the NIE more often?

Neither consistently. Women had the higher printed success rate in 6 of the 17 sittings and men in 11, and the difference was never more than 9.3 percentage points. In September 2026 it was 61.7% for women and 63.7% for men.

How many people get the exceptional grade?

Few. 658 of 25,122 candidates across the sittings we read, 2.6%. It needs 60 of 70 scored questions right (85.7%). In September 2026, 23 candidates got it.

How does the NIE pass rate compare with the sergeants' exam?

The latest published sergeants' exam (NPPF Step 2, March 2026) had a 58.5% pass rate at a 55% pass mark, and the inspectors' exam (May 2026) 37.0% at 65%. The NIE's latest was 63.3% at 55.7%. They are different exams on different Manuals for different roles, so the comparison is context only.

Can I still find old NIE results PDFs?

Some. The College keeps recent overviews on its asset server, but the 2021 and early 2022 files are no longer served, and we read those from Internet Archive copies of the College's own files. We could not find overviews for June 2022, September 2022, March 2023 or June 2026. Every row on this page links to the copy we used.

Does PolicePay publish its own users' pass rates?

No. We have no data on whether people who use our free tools or toolkit pass, and we will not invent any. Every figure on this page is the College of Policing's.

Evidence

Sources and how we checked them

Every factual claim on this page was written from the sources below, read on 11 October 2026. Rules and figures change, so check the source for the date you are reading this. Where we could not confirm something from an official or independent source, the page says so rather than guessing. Spotted something out of date? See our corrections policy.

  1. College of Policing: National investigators' exam (NIE) page — links the current results overview and subject area breakdown. The main site blocked our reader; we read the same page from its production mirror (accessed 11 October 2026)
  2. College of Policing: NIE candidate handbook 2026 (published November 2025, PDF) — pass mark and exceptional grade, the 10 removed questions, the debrief panel and its power to alter the pass mark (accessed 11 October 2026)
  3. College of Policing: NIE results and analysis overview, September 2026 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  4. College of Policing: NIE results and analysis overview, March 2026 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  5. College of Policing: NIE results and analysis overview, November 2025 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  6. College of Policing: NIE results and analysis overview, September 2025 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  7. College of Policing: NIE results and analysis overview, June 2025 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  8. College of Policing: NIE results and analysis overview, March 2025 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  9. College of Policing: NIE results and analysis overview, November 2024 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  10. College of Policing: NIE results and analysis overview, September 2024 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  11. College of Policing: NIE results and analysis overview, June 2024 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  12. College of Policing: NIE results and analysis overview, March 2024 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  13. College of Policing: NIE results and analysis overview, November 2023 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  14. College of Policing: NIE results and analysis overview, September 2023 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  15. College of Policing: NIE results and analysis overview, June 2023 (PDF) — national totals, sex, ethnicity and force table (accessed 11 October 2026)
  16. College of Policing: NIE results and analysis overview, November 2022 (PDF) — Internet Archive copy of the College's file; national totals, sex, ethnicity and force table (accessed 11 October 2026)
  17. College of Policing: NIE results and analysis overview, March 2022 (PDF) — Internet Archive copy of the College's file; national totals, sex, ethnicity and force table (accessed 11 October 2026)
  18. College of Policing: NIE results and analysis overview, November 2021 (PDF) — Internet Archive copy of the College's file; national totals, sex, ethnicity and force table (accessed 11 October 2026)
  19. College of Policing: NIE results and analysis overview, September 2021 (PDF) — Internet Archive copy of the College's file; national totals, sex, ethnicity and force table (accessed 11 October 2026)
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On this topic elsewhere

National Investigators' Exam

More in this guide series

Hub NIE hub Dates, pass mark, pass rates, syllabus, practice and tools for the National Investigators' Exam. Dates NIE dates Every 2026 sitting, registration windows, results days and what we know about 2027. Exam Pass mark Why 80 questions become 70, the 39 mark, the exceptional grade and what a marginal fail means. Study Syllabus What each part covers, what is not examined, and how the College's own subject breakdown splits the paper. Study How to pass Manual first, questions second, spaced review and full timed sittings, with the arithmetic of 39 out of 70. Plan Revision plan Week-by-week plans weighted to the four parts, including a last-five-weeks plan for 17 November 2026. Exam How hard is it Pass rates, the volume of law, application-style questions and who finds it hardest. After the exam Results day Results dates, the feedback report, what happens next for PIP2 and how long a pass lasts. After the exam If you fail Resit rules, the development meeting after a second fail, and what it means on DHEP and other routes. Exam day Exam day rules The 8am to 8pm window, equipment, what is banned (including AI) and what to do if something goes wrong. Practice Practice questions Original practice questions across all four parts, each with the answer, explanation and source. Topic PACE codes Search, detention, identification and recorded interviews: the points investigators are tested on. Topic Disclosure, RIPA, CHIS The CPIA regime and Code of Practice, directed surveillance and covert human intelligence sources. Topic Part 1 Mens rea, actus reus, court procedure, bail and powers: the largest part of the paper. Topic Part 2 Homicide, drugs, firearms, terrorism, assaults, harassment, domestic abuse and child protection. Topic Part 3 Theft, robbery, burglary, handling, fraud, criminal damage and proceeds of crime. Topic Part 4 Consent, the Sexual Offences Act 2003 offences and child sex offences, with worked questions. Study Resources compared Blackstone's books, question banks, courses and apps side by side, with dated prices. Study Which Manual edition The 2026 and 2027 editions, which sitting each covers, and the Workbook and Q&A. Routes Direct entry detectives When you sit it on each route, how the training fits around it, and what a fail means.
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Disclaimer

PolicePay.co.uk is an independent guide. It is not affiliated with, endorsed by or produced by the College of Policing or Oxford University Press (Blackstone's). Exam rules, dates, the syllabus and prices change, so check the College of Policing's current NIE candidate handbook and exam page before you register or buy. Practice material on this site is original and is not real or recalled exam content. Details apply to England and Wales unless stated. Details are as checked on 11 October 2026.