Paul Connor LLB is a Police Training Consultant and is a member of the ICIDP Curriculum Review Group. He has previously been involved in training activities with the ICIDP and NIE. Paul is also the consultant editor for the Blackstone's Police Manuals and author of Blackstone's Police Investigators' Workbook, Blackstone's Police Investigators' Q&As and Blackstone's Sergeants' Mock Examination Paper. 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. David Johnston LLB, LLM is a barrister and Superintendent in the Metropolitan Police Service. Formerly a member of the NPT Examinations and Assessment team, he previously worked as a legal researcher for the Home Office in Harrogate. Gavin McKinnon LLB LLM MSt MCIPR FCMI is the Head of Corporate Communications for Kent Police. Formerly a Chief Superintendent, he served with the National Policing Improvement Agency, 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. Dave Pinfield is a serving police officer with West Midlands Police and has been an officer for 21 years. He is currently the Detective Sergeant Team Leader having responsibility for the force with regards to the ICIDP and IMSC courses at the Detective Training School. He has been involved in the National Investigators Examination since January 2002. He is the author of Blackstone's Investigators' Mock Examination Paper. Neil Taylor is a serving police officer with the West Midlands Police and is a police trainer at the Detective Training School. Julian Chapman is a serving police officer with the West Midlands Police and is a police trainer at the Detective Training School.