Mr Robert Butler

Mr Rob Butler specialises in the enhancement, analysis, interpretation and authentication of audio and video recordings. With 19 years experience with the Metropolitan Police, where he was involved in electronic, communications, audio and video engineering. After more than three years in the Research & Development Department, he spent 11 years in the Evidential Analysis Department. He was involved in the Metropolitan-­wide design and development of audio and video tape recorded interview rooms and video recording suites for child witnesses. His last position was as Head of the Metropolitan Police Forensic Video Laboratory. Operating as an independent Expert since leaving the Metropolitan Police in 1997, Rob has assisted in numerous cases countrywide, including cases of offences of terrorism, murder, drug trafficking, abduction, sex offences, armed robbery, robbery, vehicle crime and traffic offences. His work has included: Enhancement of CCTV images; Comparison of vehicles, clothing and other objects from images; Examination of images of people for the purposes of identification such as facial mapping, body proportions, height, posture and gait comparison; Interpretation of actions and events from images; Calculation of vehicle speeds from CCTV recordings; Enhancement and transcription of audio recordings; Examination and authentication of audio and video recordings for originality and continuity.

Member of the Institute of Incorporated Engineers, the International Association for Identification, the British Association for Human Identification (Forensic Imagery Analysis Group), the Forensic Science Society and the Society of Expert Witnesses. Listed in the UK Register of Expert Witnesses and with the National Police Improvement Agency (NPIA) as an Expert Advisor.