This workbook serves as a comprehensive training tool designed to test and reinforce the knowledge required for police investigators to perform their duties effectively. The authors, Paul and David Pinfield, leverage their expertise in law enforcement training to provide a structured environment for practitioners to apply legal principles to realistic scenarios. The text functions as a practical supplement to the Blackstone's Police Investigators' Manual, focusing on the application of criminal law, evidence handling, and investigative procedures. By utilizing a series of exercises and assessments, the book ensures that investigators can translate theoretical knowledge into actionable field skills.

Experts in the field of police training identify this workbook as a standard resource for those preparing for professional investigative examinations. Readers frequently note the practical utility of the exercises in reinforcing complex legal concepts for real-world application.