• Accident investigation advice at an early stage
  • Full accident reconstruction service
  • Witness Interviews
  • Police Vehicle Collisions
  • Pedestrian Collisions
  • Critical Review of previously prepared reports
  • Undertake Criminal Defence Work
  • Personal Injury claims

UK Register of Expert Witnesses

RGM Collision Investigation Services offers an expert, bespoke accident investigation service to members of the legal profession as well as the insurance services, private individuals and companies. Reliable and professional accident investigation can make the difference between success and failure whether in the criminal or civil arena.

Latest news & articles

Continued Success

Our senior consultant, Gary Mason, has been called upon to give expert evidence within a series of criminal trials up and down the country.  Four recent cases all resulted in acquittals for the defendants he was instructed to assist.  As a consequence, Mr Mason continues to receive instructions by way of recommendation from barristers and […]

GDPR 2018

The new General Data Protection Regulation comes into force on the 25th May 2018, so here’s an update to remind you of what we do with your data and why. Throughout holding your data, we have kept it securely and ethically, using it in ways that you would expect us to. There are no surprises […]

Lights on? Lights off?

As part of our ongoing training process, Gary Mason will be attending at Sheffield University next month (December) to undertake training in the forensic examination of light bulbs.  Collision Investigation techniques continue to develop and in this important area it can be critical to an investigation to show whether a vehicle had it’s lights on, […]

Welcome to our new website

Welcome to our brand new website. We will be updating news and case studies on a regular basis as well as providing you with all the inormation you need to determine if we can be of service to you.

Latest case Studies


Accident reconstruction evidence

The defendant was charged with causing Death by Careless Driving.  The prosecution relied, almost entirely, on reconstruction expert evidence to position the vehicles relative to each other in the seconds leading up to the collision.  Our instructing solicitors asked us to consider the expert evidence and to comment upon it and produce a defence report. […]


Accident investigation needed

RGM Collision Investigation Services were contacted by a major UK law firm on behalf of an insurer requiring accident investigation services.  Client was charged with careless driving, the allegation being that she had pulled out from a lay-by into the path of a vehicle approaching from behind.  A significant civil claim had also arisen as […]


Police crash

Lawyer’s client was charged with careless driving having been involved in a collision with a police vehicle. RGM Collision Investigation Services initially offered guidance to the defence team in order that they may seek evidence that had not yet been disclosed. Upon disclosure, it was clear that there was overwhelming evidence undermining the prosecution case, […]