Stephen Cash


I am an expert in the reconstruction of road traffic collisions, and the mechanical examination of all types of motor vehicles for all types of motoring matters. The scope of my work predominantly lays in the investigation of collisions whereby those involved have suffered either serious or fatal injuries.

I hold a BTEC Higher National Certificate in Mechanical Engineering. My work, and accompanying research and development in the field of Collision Investigation has led to me obtaining Incorporated Engineer (IEng) status from the Engineering Council, and attaining Membership of the Institution of Mechanical Engineers (MIMechE). I am a Member of the Institute of the Motor Industry (MIMI) with whom I am registered as an Advanced Automotive Engineer (AAE). I am also a Member of the Institute of Traffic Accident Investigators (MITAI).

My role as an expert requires that I remain impartial in any investigation. Any opinions that I draw surrounding the events in question will have been derived following a thorough analysis of the evidence available, during which I will routinely call upon my skills and practical knowledge in the field of Engineering and the accompanying physical and mathematical principles. My reconstructions will, where possible, consider and account for all of the physical evidence identified in order to establish the actions of those involved.

I am proficient in reviewing the work of others as well as conducting full investigations that may include collision scene examination, the identification and recovery of evidence, the examination of the vehicles involved, and the production of a detailed analysis report.

As a trained Draughtsman I understand the benefit that high quality, detailed plans and illustrations bring to communicating any matter. In a world of 3-dimensional modelling it is often still the case that a 2-dimensional graphic can be far more manageable in a court environment. Consequently, in many of my reconstructions I illustrate the key elements of the events, and pride myself in the clarity in which this allows me to communicate my conclusions accordingly.

I am experienced and routinely accepted as an expert in the field of Collision Investigation in Criminal, Coroners and Civil courts.
Since entering in to the field of Collision Investigation in 2008 from a mechanical engineering background, I have been all but too aware of the detrimental effect that technological advances in vehicle design are having on methods routinely employed by Collision Investigators in the reconstruction of collisions. Whilst research in the area of ‘Human Factors' can often be relied upon irrespective of the date of publication, techniques developed following empirical studies of vehicle related elements will often only have a life of the type of vehicle concerned. It is this underlying ethic that motivates me in not just developing new techniques, but developing techniques that can stand the test of time and be used effectively in Collision Reconstruction.

Senior Consultant
Mobile: 07816 939603