Whilst the primary role of emergency responders is the preservation and saving of lives in a safe and systematic way, we should understand the function of a collision investigator is not only to provide evidence for potential legal proceedings, but to provide information to the families of those affected where lives maybe lost or changed forever. Having an awareness of their role and how they perform it will impact on our decision making and may even change the way we have popularly gone about our process of extrication. For that reason, I would urge you to consider collision investigation as a key element of your multi agency training and preplanning. Some of the techniques that have been devised over the years may be effective, but often do not consider the importance of collision investigation. Vehicle Extrication - The NEXT GENERATION not only covers the work of collision invertigation but considers its impact on technical and medical aspects of extrication.