About the exam
NIE Exam structure
An independent guide to the College of Policing 2026 National Investigators' Examination, its four-part legal syllabus, 80-question online structure, post-examination marking review and PIP2 gateway role.
Issuer and path
National Investigators' Examination Study Guide is administered through College of Policing. Check official resources before booking, retesting, or relying on a stale requirement.
National Investigators' Examination
70 scored + 10 pretest
One 120-minute online multiple-choice paper presenting 80 questions across four official syllabus parts; 10 questions are removed after marking review and 70 contribute to the result.
Work through your force or organisation
Registration, eligibility verification, reasonable adjustments, sitting instructions and queries run through the relevant NIE liaison contact. Check the current College hub and complete the supplied platform familiarisation and device checks before the examination day.
Official Outline Coverage Map
Coverage is mapped to official outline item counts so content depth can be checked without hard-coding a single exam.
| Topic | Official outline items | Your questions | Your flashcards | Confidence |
|---|---|---|---|---|
| 1.1 Diversity, Equality and Inclusion | 0 | 12 | 5 | Good |
| 1.2 Mens Rea (State of Mind) | 0 | 15 | 5 | Good |
| 1.3 Actus Reus (Criminal Conduct) | 0 | 17 | 5 | Priority |
| 1.4 Instituting Criminal Proceedings | 0 | 11 | 5 | Good |
| 1.5 Court Procedure and Witnesses | 0 | 18 | 5 | Priority |
| 1.6 Entry, Search and Seizure: PACE Code B | 0 | 20 | 5 | Priority |
| 1.7 Detention and Treatment of Persons by Police Officers | 0 | 28 | 5 | Priority |
| 1.8 Identification | 0 | 20 | 5 | Priority |
| 1.9 Interviews | 0 | 20 | 5 | Priority |
| 1.10 Release of Person Arrested | 0 | 14 | 5 | Good |
| 1.11 Disclosure of Evidence | 0 | 20 | 5 | Priority |
| 1.12 The Regulation of Investigatory Powers Act 2000 | 0 | 15 | 5 | Good |
| 2.1 Homicide | 0 | 18 | 5 | Priority |
| 2.2 Misuse of Drugs | 0 | 21 | 5 | Priority |
| 2.3 Firearms and Gun Crime | 0 | 17 | 5 | Priority |
| 2.4 Terrorism and Associated Offences | 0 | 17 | 5 | Priority |
| 2.5 Cybercrime | 0 | 13 | 5 | Good |
| 2.6 Racial and Religiously Aggravated Offences | 0 | 10 | 5 | Good |
| 2.7 Non-Fatal Offences Against the Person | 0 | 20 | 5 | Priority |
| 2.8 Hatred and Harassment Offences | 0 | 15 | 5 | Good |
| 2.9 Domestic Violence and Abuse | 0 | 13 | 5 | Good |
| 2.10 Child Protection | 0 | 10 | 5 | Good |
| 2.11 Offences Involving the Deprivation of Liberty | 0 | 9 | 5 | Good |
| 2.12 Protecting Citizens and the Community: Injunctions, Orders and Police Powers | 0 | 8 | 5 | Good |
| 2.13 Public Order Offences | 0 | 15 | 5 | Good |
| 2.14 Offences Involving Standards of Driving | 0 | 18 | 5 | Priority |
| 3.1 Theft and Related Offences | 0 | 19 | 5 | Priority |
| 3.2 Robbery | 0 | 8 | 5 | Good |
| 3.3 Blackmail | 0 | 9 | 5 | Good |
| 3.4 Burglary | 0 | 12 | 5 | Good |
| 3.5 Aggravated Burglary | 0 | 7 | 5 | Good |
| 3.6 Handling Stolen Goods | 0 | 12 | 5 | Good |
| 3.7 Fraud | 0 | 17 | 5 | Priority |
| 3.8 Proceeds of Crime | 0 | 14 | 5 | Good |
| 3.9 Criminal Damage | 0 | 14 | 5 | Good |
| 4.1 Sexual Offences | 0 | 5 | 5 | Good |
| 4.2 Rape | 0 | 12 | 5 | Good |
| 4.3 Sexual Assault | 0 | 12 | 5 | Good |
| 4.4 Sexual Offences Against Children | 0 | 16 | 5 | Priority |
| 4.5 Sexual Offences Against People with a Mental Disorder | 0 | 9 | 5 | Good |
| 4.6 Preparatory Sexual Offences | 0 | 7 | 5 | Good |
| 4.7 Offences Relating to Prostitution | 0 | 7 | 5 | Good |
| 4.8 Other Sexual Offences | 0 | 7 | 5 | Good |
How to use this guide
Prepare for legal application, not isolated recall
Use the exact 2026 syllabus, distinguish neighbouring offences and powers, apply facts to elements and safeguards and recheck the College page for any exceptional formal update.
1. Syllabus authority
Confirm that the rule sits inside the 2026 manual and Appendix A scope.
2. Classification
Identify the exact offence, power, procedure or safeguard engaged by the facts.
3. Elements and thresholds
Test conduct, circumstances, fault, authority and every statutory condition.
4. Safeguards and alternatives
Check consent, rights, records, reviews, defences and less intrusive routes.
5. Investigator consequence
Choose the lawful next step and preserve an accurate evidential and decision trail.
One paper, four legal parts
Move from general liability and powers to the exact offence family
The four-part map keeps investigation procedure connected to serious, property and sexual offending without inventing unofficial chapter weights.
Part 1: General Principles, Police Powers and Procedures
Appendix A chapters 1.1-1.12: criminal liability, proceedings, witnesses, PACE search, custody, identification and interview, bail, disclosure and investigatory powers.
Choose a topic to open below
Part 2: Serious Crime and Other Offences
Appendix A chapters 2.1-2.14: homicide, drugs, firearms, terrorism, cybercrime, violence, protection, public order and serious driving offences.
Choose a topic to open below
Part 3: Property Offences
Appendix A chapters 3.1-3.9: theft, robbery, blackmail, burglary, handling, fraud, proceeds of crime and criminal damage.
Choose a topic to open below
Part 4: Sexual Offences
Appendix A chapters 4.1-4.8: consent offences, child and mental-disorder protections, preparatory and prostitution offences and other sexual offences.
Choose a topic to open below
1.1 Diversity, Equality and Inclusion
Article 14, protected characteristics, discrimination, policing and employment liability and the Public Sector Equality Duty.
Key rules
Rule 1
Article 14: Review the prohibition of discrimination in the Convention-rights context specified by the 2026 manual.
Exam cue: Locate the exact 2026 Appendix A heading before choosing the governing rule or procedure.
Rule 2
Protected characteristics: Identify the protected-characteristic framework before analysing the alleged treatment.
Exam cue: Separate definitions and offence elements from powers, safeguards, defences and procedural consequences.
Rule 3
Discrimination: Distinguish the forms, comparison and justification questions set out in the prescribed chapter.
Exam cue: Apply the facts to adjacent rules instead of answering from the seriousness of the outcome alone.
Common traps
Using an earlier manual edition or an unnotified later legal development as the examination rule.
Prevention: Name the controlling rule before selecting the answer.
Memorising isolated labels while missing the knowledge, understanding and application demanded by the NIE.
Prevention: Name the controlling rule before selecting the answer.
Collapsing distinct rules within Diversity, Equality and Inclusion into one undifferentiated test.
Prevention: Name the controlling rule before selecting the answer.
Memory anchors
Article 14
Review the prohibition of discrimination in the Convention-rights context specified by the 2026 manual.
Protected characteristics
Identify the protected-characteristic framework before analysing the alleged treatment.
Discrimination
Distinguish the forms, comparison and justification questions set out in the prescribed chapter.
Policing and employment
Keep police-officer, employee, applicant and organisational-liability contexts separate.
PSED
Treat the Public Sector Equality Duty as a public-authority decision-making duty, not an automatic answer to an individual claim.
Next best moves
Quick check-up
Use a short quiz to confirm the rule pattern is actually sticking.
Check-up Questions
A supervisor rejects an otherwise suitable surveillance officer because she is Roma. What is the clearest classification?
A force requires every investigator to work an inflexible night rota. The rule particularly disadvantages officers of one religion and cannot be operationally justified. What is most likely?
An investigator is removed from interview duties because of absences caused by a disability, without the decision-maker considering justification. Which route is most directly engaged?
A deaf witness can follow an investigative interview only with a qualified interpreter. What equality step should the team consider first?
Colleagues repeatedly imitate an officer's accent and create a humiliating workplace. Which concept best fits?
Answer all questions to submit.
Next step personalized recommendations
Open another topic next
Official resources
Verify the details with the official sources
Use these links for eligibility, scheduling, handbook rules, and issuer updates. Our guide helps you study; official sources tell you what the testing partner currently requires.
College of Policing NIE hub
Current examination dates, handbook and supporting candidate guidance.
2026 NIE candidate handbook
Current rules, eligibility, assessment structure, marking, results, validity and syllabus boundary.
2026 handbook PDF and Appendix A
The complete official 43-chapter outline across Parts 1-4 and the express exclusion of Parts 5-6.
Online examinations candidate guide
Current practical platform, device, syllabus-resource and examination-day guidance.
College investigation career pathway
Current explanation of PIP levels and the NIE as a gateway to PIP2 learning.
Investigation introduction
Authorised Professional Practice context for professional, ethical investigation and PIP levels.
FAQ
Common NIE questions
What is the current NIE structure?
The 2026 NIE is one online, 80-question multiple-choice paper lasting two hours. It must be completed in one sitting, and the clock cannot normally be paused once the examination begins.
Why are candidates scored on only 70 questions?
After each examination, the marking panel evaluates item performance and removes the ten questions that performed least well. The debrief panel ratifies the decision. The same ten are excluded for every candidate, their locations are not disclosed and they cannot later be included in a score.
Are those ten questions known pilot questions?
No. The handbook describes post-examination removal based on performance and fairness review, not a pre-identified pilot block. This module uses the technical pretest field only so the displayed total remains 80 while the scored result remains 70.
What is the 2026 pass mark?
The published standard is 39 correct answers out of the 70 marked questions, reported as 55.7%. A score of 85.7% or above receives an exceptional grade. The debrief panel reserves the right to alter the pass mark in exceptional circumstances.
What does the NIE assess?
It assesses knowledge, understanding and application of relevant law and procedure for a trainee investigator progressing through PIP2. The College says it is not designed as a pure factual-recall test.
What are the four examinable areas?
General principles, police powers and procedures; serious crime and other offences; property offences; and sexual offences. Appendix A contains 12, 14, 9 and 8 chapter headings respectively.
Are Parts 5 and 6 of the manual examinable?
No. The 2026 candidate handbook expressly says Parts 5 and 6 of Blackstone's Police Investigators' Manual are not outlined in Appendix A because they are not examined in the NIE.
Is every Appendix A chapter examinable?
Yes. Operational survey evidence influences the balance of the paper, but the College does not publish fixed chapter weights and warns that candidates may be asked about any part of the syllabus.
What is the definitive legal source for the 2026 NIE?
The College states that examinable law and procedure are contained only in the 2026 edition of Blackstone's Police Investigators' Manual, together with any exceptional formal update that the College publishes. The handbook appendix is a planning outline, not a substitute for that prescribed source.
Does every later change in law automatically enter the 2026 examination?
No. The annual syllabus remains the examination boundary unless the College issues an exceptional update or supplement through its NIE channels. Candidates still need current law for professional practice, but they should not silently replace the notified examination syllabus.
Are details found only in manual tables tested?
The handbook says candidates will not be tested simply on information contained solely in the manual's tables. Where the text directly refers to a paragraph of a PACE Code of Practice, however, the relevant provision is expected knowledge.
Are commercial Blackstone's question and mock products official?
No. The College endorses the Police Investigators' Manual as the syllabus source but says the separate Q&A and mock products are not affiliated with or endorsed by the College and cannot be presumed to match live NIE style or difficulty.
Who is eligible to sit the NIE?
Admission is for warranted officers, police staff investigators and people in other investigative bodies who have been selected as potential PIP2 students. Their force or organisation must confirm current competence against PIP level 1 criteria.
Does passing the NIE make someone a PIP2-accredited investigator?
No. The NIE is a gateway within the development programme. Candidates still complete the required PIP2 learning and workplace assessment before final sign-off as an accredited investigator.
How long is an NIE pass valid?
Three years less one day from the examination date. The handbook describes limited extensions for specified leave and qualifying long-term absence, while delays caused by lack of opportunity are already treated as covered by the three-year period.
Does this bank reproduce live NIE questions?
No. Pass Harbor practice uses an independently authored 601-item bank mapped to Appendix A; it does not copy, reconstruct or solicit live NIE content. Eligible candidates should still use the College's Knowledge Hub for official practice support.