Paul Connor Cert Ed (FE), PG Cert (ODE), LLB is a Police Training Consultant, teaching law to over 3,000 candidates since 2002. He is the author of the Blackstone's Crime Manual and the Consultant Editor for the Blackstone's Police Manuals. He is the co-author of Blackstone's Police Investigators' Manual, Blackstone's Police Investigators' Workbook and is the author of the Blackstone's Sergeants' and Inspectors' Mock Examination Paper. ; David Johnston LLB, LLM is a barrister and Chief Superintendent in the Metropolitan Police Service. Formerly a member of the NPT Examinations and Assessment team, he is a former OSPRERG Assessor and previously worked as a legal researcher for the Home Office in Harrogate. ; Glenn Hutton BA, MPhil, FCIPD is a director of Psychometric Technology Limited which designs and publishes psychological tests and provides selection and assessment services. Formerly a Superintendent in North Yorkshire Police, he also worked as Head of NPT Examinations and Assessment, Head of Training in North Yorkshire and as both Course Director and Director of Studies at the Police Staff College, Bramshill. ; Gavin McKinnon LLB, LLM, MSt (Cantab), CMgr is the Head of Corporate Communications for Kent Police. Formerly a Chief Superintendent, he served with the National Policing Improvement Agency (now College of Policing), and the RUC/PSNI. He also worked as Deputy Director of Police Reform at the Home Office, and was Head of Crime & Justice for the think-tank Policy Exchange. ; John Watson BSc (Hons), LLB (Hons), PGCE is a retired police Inspector currently working in road safety. He is a qualified police trainer and assessor, with several years' experience writing multiple-choice questions that have been used for in-house training.