BSc (Hons) MIMA MITAI
Dean Beaumont is a leading CCTV analyst in the Investigations Group at TRL, specialising in road accident reconstruction and providing consultancy advice. His role at TRL involves the investigation and reconstruction of incidents, including the inspection of vehicles, attendance at incident sites, analysis of video footage and providing expert advice for police forces, insurance companies and solicitors.
Dean has reconstructed collisions involving cars, motorcycles, large goods vehicles and agricultural vehicles as well as adult and child pedestrians. He has vast experience in analysing CCTV and dashboard camera footage, using a range of techniques including reconstruction, photogrammetry and line of sight analysis. Dean is experienced in 3D laser mapping and visualisation, particularly in relation to drivers’ line of sight.
With a Bachelor of Science (1st class honours) in Mathematics with Business Management from Birmingham University, Dean has also undertaken specialist training in accident investigation and CCTV analysis. He holds an Award in Vehicle Examination from the Institute of the Motor Industry and is certified to collect and interpret data from Event Data Recorders. He has also examined digital tachograph data (both 1Hz and 4Hz) to determine speeds, distances and deceleration rates as well as route tracing.
Dean is a Member of the Institute of Mathematics and its Applications and a Member of the Institute of Traffic Accident Investigators. He is also an organiser for the Accident Reconstruction sessions for SAE International, guiding and reviewing scientific papers for presentation at the World Congress event in Detroit, USA.
For over 5 years Dean prepared and delivered collision investigation training in the UK and overseas. This involved teaching the fundamental mathematics, physics and reconstruction techniques as well as the practical elements required to formally practice as a collision investigator.
Dean is an experienced expert witness, having presented oral evidence in Magistrates’, Coroners’, Crown and High Courts, in both Civil and Criminal cases, including giving evidence remotely.
Notable recent casework and publications:
2021 R v Khondaker Dean prepared a detailed reconstruction report, including a complex analysis of multiple sources of CCTV footage, resulting in a successful prosecution for the charge of murder and attempted murder, which was widely reported across the press.
2019 Banging Heads Onboard Buses: Assessment Scheme to improve injury mitigation for bus passengers. Traffic Injury Prevention, Volume 20 Supplement 1, 2019.
2019 Inquest into the death of Anna Kirsopp-Lewis Dean provided CCTV analysis in this case which showed the subject vehicle travelling at around 130 mph, assisting the Coroner in ruling the cause of death as ‘unlawful killing’.