This book investigates the core procedural knowledge required for police officers to successfully pass Part 1 promotion examinations. The authors, Huw Smart and John H. Watson, utilize their experience as professional question writers to create a structured assessment tool. By mirroring the content and sequence of the Blackstone's Police Manuals, the text provides a systematic framework for officers to evaluate their grasp of evidence and legal procedure.

Experts and practitioners recognize this series as a standard resource for police promotion candidates. Readers frequently note that the text is highly effective for self-assessment and reinforcing complex legal concepts before testing.