Access to the NPPF and NIE Q&A on the older platforms, including test and mock exam results, is no longer be available - all Q&A users should begin using the replacement platforms. View our National Investigators' Examination (NIE)
The National Investigators' Examination (NIE) is designed to identify those candidates who can demonstrate the sufficient level of knowledge of law and procedure relevant to a trainee investigator. The NIE is a multiple-choice examination, testing knowledge of law and procedure relevant to the role of a trainee investigator.
The examination consists of 80 questions answered over two hours. All questions are subject to quality assurance checks by legal, equality, diversity and human rights experts.
For the updated Rules and Syllabus information about the examination, and for more information on the NIE, please visit the College of Policing website.
