How to Pass
the NIE
The National Investigators' Exam is 80 application questions in 2 hours, scored on 70, with a pass at 39 (55.7%). Passing comes down to knowing parts 1 to 4 of the Investigators' Manual well enough to apply them quickly. This guide sets out a method built on what the research says works, the arithmetic of the pass mark, how to pace 90 seconds a question, how to fit it around shifts, and how to tell when you are ready.
Independent information, not advice · Sources checked 11 October 2026 · England and Wales unless stated
Start at least 14 weeks out, as the College recommends. Work through parts 1 to 4 of the 2026 Manual a sub-section at a time, testing yourself from memory and doing practice questions on each chapter the same day. Bring every chapter back after a gap, mix topics once learned, keep an error log, and sit at least two full 80-question mocks in 2 hours. Aim for 65% or more on unseen questions, not the bare 55.7%. On the day, keep to about 90 seconds a question and answer everything.
Passing the NIE at a glance
The facts below come from the College of Policing's NIE candidate handbook 2026 and its online exams candidate guide. The method and the targets are ours, and we say where they are. There is no secret: the people who pass tend to be the ones who started early, tested themselves often and practised under time.
| Question | Answer |
|---|---|
| The paper | 80 multiple-choice application questions in 2 hours, online, start any time from 8am and before 8pm on the day |
| Scoring | 10 worst-performing questions removed at marking; scored on 70 |
| Pass mark | 39 of 70 (55.7%); up to 31 scored questions wrong |
| Safe target on the day | 49 or more of 80 correct guarantees 39 scored, whichever questions are removed |
| Time per question | 90 seconds on average; about 159 words a question in September 2026 |
| Syllabus | Blackstone's Police Investigators' Manual 2026, parts 1 to 4 |
| Recommended study | At least 14 weeks of independent study (College handbook) |
| Method in one line | Read a chapter actively, test yourself the same day, review it after a gap, mix topics, sit full timed mocks, log every error |
| Next sitting | Tuesday, 17 November 2026; registration closes 6pm Wednesday, 21 October 2026; results by Tuesday, 8 December 2026 |
The arithmetic of 39 out of 70
You sit 80 questions. After the sitting, the marking panel (ratified by the debrief panel) removes the 10 questions that performed least well, and everyone is scored on the same remaining 70. You need 39 of those 70, which is 55.7%. You are never told which questions were removed.
What a practice score means in scored questions
| Accuracy | Correct of 70 | Margin over the pass mark | What it means |
|---|---|---|---|
| 55.7% | 39 | 0 | The pass mark exactly. No margin for a bad day |
| 60% | 42 | +3 | A pass on paper, but a few unlucky questions away from a fail |
| 65% | 45 or 46 | +6 or +7 | A sensible minimum target in practice |
| 70% | 49 | +10 | A comfortable margin |
| 75% | 52 or 53 | +13 or +14 | Strong |
| 85.7% | 60 | +21 | Exceptional grade |
The difference between 60% and 65% is only three or four questions, but on a hard day those are exactly the questions you lose. That is why we suggest aiming for 65% or more on unseen practice questions under time. It is our planning target, not an official figure.
The same idea on the full paper of 80
| Correct of 80 | Result | Why |
|---|---|---|
| Fewer than 39 | Fail, whichever questions are removed | Even if all 10 removed questions were ones you got wrong, you cannot reach 39 |
| 39 to 48 | Pass or fail, depending on which questions are removed | The removed questions are the ones that performed least well across all candidates, not chosen by you |
| 49 or more | Pass (at the published pass mark) | Even if all 10 removed questions were ones you got right, you keep at least 39 |
49 correct answers is about 61% of the paper. Hit that and the removal of 10 questions cannot take you below 39, as long as the published pass mark applies. The handbook says the debrief panel can alter the pass mark in exceptional circumstances, higher or lower, so no score is a guarantee in that sense, but this is the right way to think about your margin.
What about the exceptional grade? It needs 60 of 70 (85.7%). In September 2026 the College's results overview shows 23 of 1,050 candidates (2.2%) achieved it, so it is rare. It is worth having, but nothing in the handbook makes it a requirement for PIP2, so do not let chasing it distract you from building a safe margin over 39 with no weak part.
A near miss is final. The handbook says there is no provision to add marks for candidates just below the pass mark and no remarking. More in the NIE pass mark explained.
90 seconds a question: pacing the two hours
120 minutes for 80 questions is 90 seconds each. The College's September 2026 breakdown puts the paper at about 12,727 words, roughly 159 words a question, so most of your time goes on reading the scenario carefully. If you aim to finish with ten minutes for review, your working pace is closer to 82 seconds.
| Point | Clock time used | Progress | What to do |
|---|---|---|---|
| Start | 0:00 | 80 to go | Read the first question slowly. Settle in |
| Checkpoint 1 | 0:28 | Question 20 done | If behind, flag faster and stop rereading the options |
| Checkpoint 2 | 0:55 | Question 40 done | Halfway. A comfort break here if you need one: the clock keeps running |
| Checkpoint 3 | 1:23 | Question 60 done | Keep moving; flag anything over two minutes |
| Checkpoint 4 | 1:50 | Question 80 done | Every question has an answer, including the flagged ones |
| Review | 1:50 to 2:00 | Flagged questions | Change an answer only for a clear reason you can state, not a feeling |
How the platform helps
- A countdown clock at the top of the screen. It keeps running during comfort breaks.
- Flagging. Flag a question to come back to; flagged questions show in the side panel.
- Strikethrough. Strike out options you have ruled out. You can still choose a struck-out option.
- Workings. A notes function inside the platform. Notes are deleted when you submit, and you must not make notes in any other format.
- Any order. You can move back and forth and answer in any order. The guide says all questions are equally weighted and difficulty varies throughout, so there is no benefit in starting from the back.
- Automatic submission. If time runs out, the answers you have given are submitted automatically.
If a question has taken two minutes and you are still unsure, choose your best answer, flag it and move on. One stubborn question can cost you three easy ones at the end of the paper.
The method, step by step
This is the method we would follow, built around the College's 14-week recommendation and the research in the next section but one. Each step has a common way of going wrong, which is usually the thing that separates a pass from a near miss.
| Step | When | What to do | The trap |
|---|---|---|---|
| 1. Set up | Week 1 | Get the 2026 Manual, the candidate handbook and the current PACE Codes. Join the College's Candidate Online Examination Guidance group on the Knowledge Hub. Book your study slots for the next 14 weeks | Wrong edition or no plan |
| 2. Diagnose | Week 1 | Take a short mixed test cold, before reading, to see where you start. Our free mini mock or 30 to 40 mixed questions from any source will do. Expect a low score | Waiting until you feel ready to start testing |
| 3. Manual first, actively | Weeks 1 to 10 | Read one sub-section at a time. Close the book and write the elements or rule from memory, then check. Note anything you missed | Reading pages without recalling anything |
| 4. Questions the same day | Every session | After each chapter, do 10 to 20 questions on it. Check every answer against the Manual, right or wrong | Saving questions until after you have 'finished the book' |
| 5. Spaced review | Ongoing | Bring each chapter back roughly the next day, the next week, and three weeks later, with fresh questions | Covering a chapter once and moving on |
| 6. Mix it up | From week 4 | Once you have learned a few chapters, practise them in mixed sets. The real paper does not tell you which chapter a question is from | Only ever practising one topic at a time |
| 7. Full timed mocks | From about week 9 | Sit at least two full 80-question papers in 2 hours, at the time of day you plan to sit, with no breaks or notes | Never practising the full two hours |
| 8. Error log | Throughout | Record every wrong answer with the reason and the Manual reference. Re-test those points weekly | Looking at the right answer and moving on |
If you only have 30 minutes
Short sessions still count, as long as they involve recall rather than rereading. Do 15 mixed questions on topics from at least a week ago, check every explanation against the Manual, and log anything you got wrong or guessed. On a busy week, three of these keep every part alive until your next long block.
A typical 60-minute session
- 10 minutes: warm-up recall. Ten questions or flashcards from a chapter you covered a week or more ago.
- 30 minutes: new material. One or two sub-sections of the Manual, read actively: read, close the book, write the rule or elements from memory, check, correct.
- 15 minutes: questions on today's material. Ten to fifteen questions; check every explanation against the Manual.
- 5 minutes: error log. Log anything you got wrong or guessed, with the reason and page reference.
For full timed mocks, use a paper weighted across all four parts. Our free NIE mini mock is a short starting point. Our paid NIE exam prep toolkit (ours, £49.99 for 6 months, one-off payment) adds timed 80-question mocks in the same part proportions as the September 2026 paper and tracks your scores by part. It is written by us, not the College, and it does not replace the Manual. Blackstone's Workbook, Q&A and Mock Examination Paper, and other providers, also offer timed practice.
Using study resources well
You need one book and a supply of good questions. Everything else is optional. Here is how the main options fit the method, with what each does well and what to watch for.
| Resource | What it does well | Watch for |
|---|---|---|
| Blackstone's Police Investigators' Manual 2026 | It is the syllabus. Every examinable rule is in parts 1 to 4 | Reading it is not the same as being able to apply it. Pair it with questions |
| College Knowledge Hub sample questions (free, login) | Written to mirror the real format, with answers and explanations; also tips, a revision timetable template and feedback report guidance | A small sample, not a full practice exam, because the College reuses its questions |
| Blackstone's Workbook, Q&A and Mock Examination Paper | Plenty of questions referenced to the Manual; the Mock Paper is a full-length sitting | The College says they cannot be presumed to represent the style or difficulty of the real exam |
| Commercial question banks and courses | Volume, timed tests and progress tracking; some offer taught crammer days | The College says they are not endorsed and may differ in content and difficulty |
| PolicePay free tools (ours) | A free mini mock with a result report, free practice questions and a free revision timetable | Written by us from statute and case law, not by the College |
| Force training and study groups | Local knowledge, peer explanation and accountability | Discussing the content of a past sitting breaks the College's rules |
For a side-by-side with dated prices, see NIE revision resources compared. Whatever you choose, apply the same discipline: check every explanation against the Manual, and treat no practice score as a forecast.
The last two weeks
- 14 to 8 days out: your second or third full timed mock. Mark it by part and by error type.
- 7 to 5 days out: the final full mock, no later than this, so there is time to act on it. Repair the two weakest areas.
- 4 to 2 days out: mixed sets of 30 to 40 questions, the error log twice through, the numbers and authorities sheet daily. Do the familiarisation exercise and system check.
- The day before: 20 questions and a skim of the error log. Prepare the room and device. No full mock. Sleep.
- Nothing brand new: starting an unread chapter in the last three days rarely sticks. Better to consolidate what you have.
Reading the Manual so it sticks
The Manual is the syllabus: questions are drawn solely from parts 1 to 4 of the 2026 edition. Never drop it in favour of a question bank. The goal is to read it in a way that leaves you able to apply it.
- Start with part 1, chapters 1.2 and 1.3. Mens rea and actus reus are the vocabulary of every offence in parts 2 to 4.
- Learn offences as elements. For each offence, write down what must be proved: the conduct, the circumstances, the result if any, and the mental element. Most application questions test one element.
- Learn the boundaries. Where two offences sit side by side (assault and battery, the two burglary limbs, the public order offences), write down what separates them. Questions are often built on that line.
- Read the Code paragraphs the Manual cites. The handbook says you are expected to know them. Have the current PACE Codes B, C, D, E and F open alongside.
- Do not memorise tables for their own sake. The handbook says recall of information that is only in a table is not tested. Understand the rule behind each table.
- Keep a 'numbers and authorities' sheet. Time limits, ages, ranks and who authorises what, built from your own mistakes. Test it little and often.
- Answer from the Manual, not from work. Force practice and recent cases may differ from the 2026 edition. The exam tests the law as the Manual states it.
See the NIE syllabus 2026 for what each part covers and a suggested order.
Answering an application question: a five-step routine
The College describes NIE questions as multiple-choice application questions: a set of facts and a choice of answers. A consistent routine stops you being led by the options. Practise it on every question until it is automatic.
- Read the question line first. Know whether you are being asked which offence, whether a power exists, what a Code requires, or which statement is correct.
- Read the facts for the elements. Who did what, to whom, when, and with what state of mind. Ages, times, ranks and relationships often decide the answer.
- Name the rule. Before you look at the options, say which offence or provision is in play and what it requires.
- Predict, then compare. Decide what the answer should be, then find the option that matches. Strike out options that fail an element.
- Watch for the true-but-irrelevant option. A statement can be good law and still not answer this question on these facts.
An original worked example
This question is ours, written from the Criminal Justice Act 1988 and the Criminal Attempts Act 1981. It is not a real or recalled NIE question.
A. Kai has committed an assault, because he intended to use unlawful force.
B. Kai has committed a battery, because the force was aimed at Ben.
C. Kai has committed neither an assault nor a battery on these facts.
D. Kai has committed attempted battery.
Answer: C. An assault needs the victim to apprehend immediate unlawful force, and Ben apprehended nothing at the time. A battery needs force to be applied, and none was. Option A confuses the defendant's intention with the victim's apprehension. Option D is the trap: common assault and battery are summary offences (Criminal Justice Act 1988, section 39), and the Criminal Attempts Act 1981 applies only to offences triable on indictment (section 1(4)), so there is no offence of attempting them. Applying the routine gets you there: the question asks which offence; the key facts are no apprehension and no contact; the rules are the elements of assault and battery; and option D sounds right until you check whether an attempt is possible at all.
More original questions with explanations: NIE practice questions and answers.
Why this method: the research
None of these studies is about the NIE, and some are not about law at all, but the findings are consistent and well replicated. They explain why testing yourself beats rereading even though rereading feels better.
| Technique | What the research found | How to use it |
|---|---|---|
| Testing yourself (retrieval practice) | Roediger and Karpicke (2006): after a delay, students who had tested themselves remembered more than those who reread, though rereading felt more effective. Dunlosky et al. (2013) rated practice testing high utility | Recall the elements before you check. Do questions from the first week |
| Feedback on multiple choice | Butler and Roediger (2008): feedback after multiple-choice tests raised later accuracy and reduced the wrong options people repeated | Read the explanation for every question and check it against the Manual |
| Spacing | Cepeda et al. (2006): spaced study beats cramming, and the best gap grows with the time to the test | Plan each chapter to come back several times over the 14 weeks |
| Interleaving (mixing) | Rohrer and Taylor (2007): mixed practice beat blocked practice on a delayed test (maths problems, not law) | Use mixed sets once a topic is learned |
| Rereading and highlighting | Dunlosky et al. (2013): low utility. They feel productive because the text becomes familiar | Use them for a first pass or to check a point, not as your method |
| Full timed papers | No study we found tests NIE-style mocks directly; this is our reasoning from the timing and length of the paper | Practise pacing and concentration for two hours at least twice |
Rereading a chapter makes it feel familiar, and familiarity feels like knowledge. The exam does not ask whether a passage looks familiar; it asks you to apply it to facts you have not seen. Closing the book and trying to recall is harder and slower, which is exactly why it works.
The error log: where the marks come from
Every wrong answer tells you something. Recording why you got it wrong, not just what the right answer was, turns practice questions into targeted revision. A spreadsheet or a notebook both work: date, part and chapter, the type of error, the rule in one line, and the Manual reference.
| Type | What happened | Fix |
|---|---|---|
| Did not know it | The rule was not in your head | Reread that sub-section, write the rule from memory, re-test in a few days |
| Half knew it | You recognised it but confused a detail: an age, a time limit, who authorises, which subsection | Add it to a 'numbers and authorities' list and test that list daily |
| Misread the question | Missed 'not', 'most likely', 'must', or a key fact in the scenario | Before reading the options, say to yourself what the question is actually asking |
| Fell for a true-but-irrelevant option | Picked a statement that is good law but does not answer this question | Write one line on why the right answer is right and why yours was not |
| Ran out of time | Rushed or guessed the last questions | Use checkpoints; flag and move on after about two minutes |
| Changed a right answer | Talked yourself out of it on review | Only change for a reason you can state from the law |
Once a week, re-test every entry from the previous fortnight with fresh questions on the same point. When an entry stays right twice in a row a week apart, mark it fixed. In the last week, the error log is the most valuable thing you own.
How long to study
The College's 2026 candidate handbook recommends a minimum of 14 weeks of independent study using the Manual. It does not publish hours. The table below gives our planning figures; adjust them to what you already know.
| Weeks | Hours a week | Total | Suits |
|---|---|---|---|
| 14 weeks (College minimum) | 6 to 8 | About 85 to 110 | Most first-time candidates. Room to lose a week to work or illness |
| 10 to 12 weeks | 8 to 10 | About 90 to 110 | Workable with a steady shift pattern; little slack |
| 6 to 8 weeks | 11 to 14 | About 75 to 100 | Shorter than the College recommends. Realistic only with prior study or a resit |
| 4 to 5 weeks | 14 to 18 | About 65 to 85 | A late start or a resit. Prioritise ruthlessly; see the last-five-weeks plan |
If you are reading this in October 2026 with the Tuesday, 17 November 2026 sitting in mind, you have about five weeks. That is well short of the College's recommendation, and you should talk honestly with your supervisor or NIE liaison contact about whether to sit now or at the next sitting. If you are going ahead, the NIE revision plan has a dated last-five-weeks timetable. Registration closes at 6pm on Wednesday, 21 October 2026, and your force may set an earlier internal deadline.
Studying around shifts
Most NIE candidates are working constables, trainee detectives or staff investigators on a rota. The plan has to survive rest days being cancelled, court, late finishes and nights. The principle is simple: heavy work when you are fresh, light retrieval when you are not, and something every day.
| Shift | Best slot | Best use | Avoid |
|---|---|---|---|
| Early turn | Afternoon, after a break: 45 to 60 minutes | Spaced review and mixed questions | Long new reading when tired |
| Late turn | Morning before work: 60 to 90 minutes | New sub-sections, then questions on them | Studying after a late finish |
| Night shift | Before the first night only, if at all | 15 to 20 questions or flashcards | New chapters after nights |
| First rest day after nights | A short session later in the day, or none | Light review | A full timed mock |
| Other rest days | Two blocks of about 90 minutes with a long break | New chapters, full mocks, error log repair | Six straight hours of reading |
| Course days (PIP2, DHEP, academy) | Evening: 30 minutes | Link what you covered on the course to the Manual chapter | Assuming the course replaces your own study |
| Cancelled rest day or court | Whatever is left | The daily 15 questions so the habit survives | Writing off the week: move the block instead |
- Put questions on your phone. Ten questions on a refreshment break or before a briefing add up over 14 weeks.
- Plan the week on your rest days. Look at the rota and fix your two or three main blocks before the week starts.
- Spread annual leave. A day before each full mock is worth more than a week of cramming at the end.
- Ask about study time. Some forces and programmes give study days or protected time for the NIE. Ask your tutor, supervisor or NIE liaison contact what your force offers; it varies.
- Sleep is revision. Memory consolidates during sleep. A tired hour after a night shift is worth much less than a fresh half hour.
Common mistakes
- Reading the whole Manual before doing any questions. By the time you reach part 4, part 1 has faded. Test from week one.
- Skipping a part. Part 4 carried 10 and part 3 carried 11 of 70 scored questions in September 2026. Neither is optional.
- Learning tables instead of rules. The handbook says tables are not tested as pure recall.
- Using an old edition. The College advises against it. The exam tests the law as stated in the 2026 Manual.
- Treating a question bank as the syllabus. Any bank, ours included, is practice. The Manual is the syllabus.
- Reading a single practice score as a prediction. The College warns commercial questions may differ in content and difficulty from the real thing.
- Never sitting a full paper. Two hours of concentration is a skill. Practise it at least twice.
- Planning to look things up during the exam. The College says it is unlikely to help and strongly discourages it. There is no time.
- Leaving registration late. The deadline is 6pm on the closing date and forces can set earlier ones. Registration is through AIMS via your NIE liaison contact.
- Discussing the paper afterwards. Sharing or discussing questions, or even the topic areas of a sitting, breaks the rules and can lead to your result being removed and a ban.
Reasonable adjustments: ask early
If you have a disability as defined by the Equality Act 2010, including a neurodivergence such as dyslexia, the handbook says you can apply for reasonable adjustments. Extra time changes your pacing plan, so it matters for how you practise as well as on the day.
- Tell your NIE liaison contact when you register. Flagging it on AIMS is not a formal request on its own.
- Complete the request form and provide a specialist's report with a diagnosis and recommendations. Your force occupational health team may be able to help you find the right specialist.
- Meet the deadline. For the Tuesday, 17 November 2026 sitting the handbook's closing date for adjustment and accommodation applications is Wednesday, 21 October 2026, the same day registration closes. Later applications may limit what the College can offer.
- Check it before you start. The candidate guide says to confirm your adjustment shows on the platform before pressing start, because it cannot be changed once you begin.
- Practise with it. If you are granted extra time or scheduled breaks, sit your mocks with the same timing. With scheduled breaks you cannot go back to an earlier section, so answer every question in a section before moving on.
When you are ready
There is no official readiness test, and the College is clear that commercial questions may not match the real paper in difficulty. These signs are our suggestions. If most of them are true, you are in a good position.
| Measure | Ready | Not yet |
|---|---|---|
| Unseen mixed questions, timed | 65% or more, steadily, over several sets | Below 60%, or swinging widely |
| Each of the four parts | No part below about 55% | One part well below the rest |
| Full 80-question mocks | At least two finished in time, with ten minutes left to review | Running out of time or never having tried |
| Error log | Fewer new entries each week; old ones stay fixed when re-tested | The same points keep coming back |
| Recall from memory | You can state the elements of the main offences and the key PACE time limits without looking | You recognise them only when you see them |
| College sample questions | You find the reasoning in the explanations familiar | The style surprises you |
If you are not there with a week or two to go, you have choices: focus every remaining hour on your weakest part and the error log, or talk to your force about the next sitting. The handbook says forces are charged for every candidate still registered two weeks before the exam, and a withdrawn candidate is not automatically entered for the next sitting, so raise it early rather than late. Our toolkit (ours) shows your scores by part over time, which helps with this decision; any tracking that separates the four parts will do the same job.
On the day
- Do the familiarisation exercise beforehand. It is emailed about a week before, can be accessed once only, and is available until 7pm on exam day. Check that it confirms your submission.
- Run the system check on the device and browser you will use. Use a laptop or desktop, not a small tablet.
- Pick your time. Start any time from 8am, and before 8pm. College support runs 8am to 8pm and the College recommends finishing before 8pm, so starting by about 5.30pm leaves room for problems.
- Be alone, without notes or AI. No one else in the room unless it is an organised force sitting. No AI tools, no help, no copying or screenshots.
- Use the platform tools. Flags, strikethrough and workings. Keep to your checkpoints.
- Answer everything. Then review flagged questions if time allows.
- Report problems quickly. Queries about specific questions must reach the College's exams team within three days of the exam. Describe the question; never copy it.
Full details in NIE online exam rules and exam day. Results for the Tuesday, 17 November 2026 sitting are due by Tuesday, 8 December 2026; see NIE results day.
Scenarios
Myths about passing the NIE
How to pass checklist
- I have the 2026 Investigators' Manual, the candidate handbook and the current PACE Codes.
- I have joined the College's Candidate Online Examination Guidance group on the Knowledge Hub.
- I have a plan of at least 14 weeks, or a clear reason for a shorter one.
- I took a diagnostic test in week one.
- I test myself after every reading session and check every answer against the Manual.
- Every chapter has come back at least twice after a gap.
- I practise in mixed sets across all four parts.
- I have sat at least two full 80-question mocks in 2 hours.
- My error log is up to date and shrinking.
- I know my checkpoints and the two-minute rule.
- I am registered, and I know my force's internal deadline.
- I have done the system check and the familiarisation exercise.
What we could not verify
- Negative marking. The handbook expresses the pass mark as correct answers and we found no mention of deductions for wrong answers, but it does not say in terms that there is no penalty. Answering every question is still the right advice.
- Number of options per question. The College describes multiple-choice application questions but we did not find the number of options stated in the handbook or the candidate guide.
- Study hours. The College recommends weeks, not hours. Our hours and our 65% target are planning figures, not evidence of what passes.
- How practice scores translate. No published data links any practice bank's scores to NIE results, and we have no pass rate data for our own users.
- Study time from forces. Some forces give study days; we have not surveyed which, and policies vary.
- What a late withdrawal means for you personally. The handbook covers charges to forces; what your force does about it is local policy.
Frequently Asked Questions
How do you pass the National Investigators' Exam?
By knowing parts 1 to 4 of the 2026 Investigators' Manual well enough to apply them to short scenarios, and by getting at least 39 of the 70 scored questions right. The methods with the best research behind them are testing yourself rather than rereading, checking every answer against the Manual, spacing reviews out over weeks, and practising full 80-question papers in 2 hours.
What is the pass mark for the NIE?
55.7%, which is 39 correct answers out of 70 scored questions. 85.7% (60 of 70) or more earns an exceptional grade. The handbook says the debrief panel can alter the pass mark in exceptional circumstances if it sees a significant deviation in the success rate.
How many questions can you get wrong in the NIE and still pass?
Up to 31 of the 70 scored questions. Because you are not told which 10 questions are removed, the safe way to think about it is this: if you answer at least 49 of the 80 questions correctly, you will have at least 39 scored correct answers whichever 10 are removed.
How long should I study for the NIE?
The College's 2026 candidate handbook recommends a minimum of 14 weeks of independent study using the Investigators' Manual. It does not give a number of hours. As our own planning figure, 6 to 8 focused hours a week over 14 weeks (roughly 85 to 110 hours) is a realistic target for most people starting from scratch.
How long do you get per question in the NIE?
120 minutes for 80 questions is 90 seconds a question on average. The September 2026 paper was about 12,727 words, roughly 159 words a question, so reading speed matters. A useful pace is to reach question 40 by about 55 minutes, leaving time to review flagged questions at the end.
Is the Blackstone's Investigators' Manual enough to pass?
The Manual is the syllabus, so everything you need to know is in it, and no other book replaces it. What reading alone does not give you is practice at applying the law under time. Most people add practice questions: the College's free sample on the Knowledge Hub, the Manual's own Workbook, and commercial question banks.
Are Blackstone's NIE Q&A books worth using?
They give you a large number of questions with explanations tied to the Manual, which is useful for retrieval practice. The College says they were developed outside it and cannot be presumed to represent the style or difficulty of real NIE questions, so do not read your Q&A score as a prediction. The same caution applies to every commercial question bank, including ours.
Can I look things up in the Manual during the online NIE?
The College's online exams candidate guide says looking at reference materials such as the Manual will not be reported or treated as cheating, but strongly discourages it because the questions test application and there is not enough time. Using AI tools, getting help from anyone, copying questions or making notes outside the platform's workings function are all breaches of the rules.
Should I guess in the NIE if I do not know the answer?
Yes, answer every question. The handbook expresses the pass mark as a number of correct answers and says nothing about deducting marks for wrong answers, so a blank can only cost you. Flag the question, give your best answer, and return to it if time allows. If time runs out, your answers so far are submitted automatically.
How do I know I am ready for the NIE?
There is no official readiness test. Good signs are: you score comfortably above 55.7% (we suggest 65% or more) on mixed questions you have not seen before, under time, across all four parts; you finish full 80-question mocks with time to spare; and your error log is shrinking. The College warns that commercial questions may differ in difficulty, so leave a margin.
Can I revise for the NIE on night shifts?
Light revision, yes: short sets of questions or flashcards during a quiet period are better than nothing. Heavy new reading after nights tends to be wasted, so keep new chapters and full timed mocks for rest days and the mornings before late turns. The plan matters less than protecting the habit of a little every day.
What score do I need for an exceptional grade in the NIE?
85.7% or more, which is 60 of the 70 scored questions. In September 2026 the College's results overview shows 23 of 1,050 candidates (2.2%) achieved it, so it is rare. A pass is a pass for PIP2 purposes; aim for a safe margin first.
Is the NIE all multiple choice?
Yes. The handbook describes a single paper of 80 multiple-choice questions in 2 hours, and the College's online exams candidate guide calls them multiple-choice application questions, presented one per page. There are no written answers or essays.
What happens if I fail the NIE?
Subject to force or organisation policy, you can resit at the next sitting. After a second fail the handbook requires a development meeting, and after a third both you and your force should strongly consider whether the path is right at that time. There is no remark and no extra marks for a near miss. See our guide on what happens if you fail the NIE.
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.
- College of Policing: NIE candidate handbook 2026 (November 2025, PDF) — minimum 14 weeks of study recommended; 80 questions in 2 hours; 10 removed, scored on 70; pass mark 55.7% (39 of 70); exceptional 85.7%; debrief panel can alter the pass mark; not a test of pure recall or of tables; PACE Code paragraphs cited in the text are examinable; familiarisation exercise; AI prohibited; resits; no remarking or extra marks (accessed 11 October 2026)
- College of Policing: Online exams candidate guide (updated 5 August 2026) — applies to the NIE; start before 8pm, support 8am to 8pm; multiple-choice application questions, one per page; countdown clock; comfort breaks do not stop the timer; move back and forth, flag, strike through options and use the workings function; answer in any order, all questions equally weighted; automatic submission when time runs out; reference materials discouraged; AI, copying and discussing questions prohibited; Knowledge Hub practice questions and revision timetable template. Read on the College's production mirror because the main site blocked our reader (accessed 11 October 2026)
- College of Policing: NIE subject area breakdown, September 2026 (PDF) — scored questions by part (30, 19, 11, 10); paper approximately 12,727 words; valid only for that sitting (accessed 11 October 2026)
- Criminal Justice Act 1988, section 39, legislation.gov.uk (latest revised text) — common assault and battery are summary offences (used in our original worked example) (accessed 11 October 2026)
- Criminal Attempts Act 1981, section 1, legislation.gov.uk (latest revised text) — s 1(4): attempts apply to offences which, if completed, would be triable as indictable offences (accessed 11 October 2026)
- Roediger, H. L. and Karpicke, J. D. (2006). Test-enhanced learning: taking memory tests improves long-term retention. Psychological Science, 17(3), 249-255 — on delayed tests, prior testing beat restudying, although restudying made students more confident (accessed 11 October 2026)
- Butler, A. C. and Roediger, H. L. (2008). Feedback enhances the positive effects and reduces the negative effects of multiple-choice testing. Memory and Cognition, 36(3), 604-616 — feedback after multiple-choice questions increased later correct answers and reduced the wrong options people later repeated (accessed 11 October 2026)
- Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T. and Rohrer, D. (2006). Distributed practice in verbal recall tasks: a review and quantitative synthesis. Psychological Bulletin, 132(3), 354-380 — spacing beats massed study; the best gap between sessions grows as the time to the test grows (accessed 11 October 2026)
- Rohrer, D. and Taylor, K. (2007). The shuffling of mathematics problems improves learning. Instructional Science, 35(6), 481-498 — mixed (interleaved) practice beat blocked practice on a delayed test; the study used maths problems, not law (accessed 11 October 2026)
- Dunlosky, J., Rawson, K. A., Marsh, E. J., Nathan, M. J. and Willingham, D. T. (2013). Improving students' learning with effective learning techniques. Psychological Science in the Public Interest, 14(1), 4-58 — practice testing and distributed practice rated high utility; rereading and highlighting low utility (accessed 11 October 2026)
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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.