This page sets out where the material in this app comes from, and under what terms.

The overviews, key points, flashcards and quiz questions in this app are independently written — they are not copied or paraphrased from any single source, and they are not the College of Policing's Authorised Professional Practice or Blackstone's Police Investigators' Manual.

Where this app describes the effect of an Act, statutory instrument or Police and Criminal Evidence Act 1984 Code of Practice, that description is adapted from the primary source: legislation.gov.uk and the PACE Codes of Practice on gov.uk. Contains public sector information licensed under the Open Government Licence v3.0. View the licence.

Where this app refers to Crown Prosecution Service charging guidance or Sentencing Council guidelines, that material is adapted from CPS and Sentencing Council publications. Contains public sector information licensed under the Open Government Licence v3.0. View the licence.

Case-law summaries in this app are this app's own descriptions of the effect of published judgments, not reproductions of the judgments themselves. Judgments referred to are published by Find Case Law and BAILII, which are acknowledged as the source of the underlying case record.

• Not affiliated with, or endorsed by, the College of Policing or Oxford University Press.
• The NIE is marked on the current edition of Blackstone's Police Investigators' Manual — you need your own copy; this app is a study companion, not a replacement.