Ady Stevens

Consultant Engineer

Head Office: Crown House, Bridgewater Close, Network 65, Burnley, BB11 5TE

Tel: 0345 2 577 677


  • BSc (Hons) Combined Sciences
  • Level 4 Forensic Collision Investigation
  • Level 3 Analogue Tachograph Analysis
  • Level 3 Police Light Motor Vehicle
  • Level 3 Tachograph Calibration
  • Level 3 Police Heavy Motor Vehicle
  • Level 3 Police Motorcycle Inspection
  • Level 3 Digital Tachograph Analysis
  • Level 2 Hybrid and Electric Vehicles
  • Level 2 Applied Survey Instruments & Computers
  • Level 1 Electric/Hybrid Vehicle Awareness


  • Member of the Chartered Society of Forensic Science
  • Member of the Institute of Traffic Accident Investigators


Ady’s early employment history was split between; the driving of, day to day maintenance and repairs a range of wheeled and tracked vehicles, manual and and computerised mathematical data calculations, manual land surveying, and staff training.

In 1987 he joined Warwickshire Police as a reactive beat officer, and qualified as a Traffic Patrol Officer in 1991. During this time he gained an excellent practical understanding of vehicle handling and dynamics, his primary role was to attend, investigate and report on all manner of road traffic collisions, from damage only to multi-vehicle, multi-fatality motorway collisions. During this time he has attended many hundreds of collisions shortly after their occurrence and gained invaluable experience in ascertaining how various vehicles, construction techniques and materials behave on impact. He also acquired numerous relevant qualifications.

In 2000 he became a full time Forensic Collision Investigator qualifying to City and Guilds level in Forensic Collision Investigation for Police Officers.

During his service he attended and passed numerous specialist training courses and towards the end of his career he was regularly temporarily promoted to acting Sergeant, in the in the absence of the unit manager.

In 2009 he retired as a police officer and was re-employed by Warwickshire police as a support staff forensic collision investigator. In 2010 he was promoted to manage the Collision Investigation unit full time whilst continuing to maintain his own caseload.

In 2015 he became a Forensic Collision Investigator with GBB UK, examiningg vehicles and evidence to report on the circumstances of vehicle collisions. He is involved in the GBB research programme which regularly performs crash testing of vehicles with live occupants. This is done to understand the way in which different types of vehicle and designs interact in collisions, how the forces are dissipated through the structures and the likelihood of injury at given speeds.

He routinely inspects collision vehicles for damage correlation and regularly conducts 3-Dimensional laser scanning and post processing on historical collision scenes and damaged vehicles.

He is experienced in giving evidence to Criminal, Civil and Coroners’ Courts and is accepted as an expert witness for these purposes.