Abstract
Any traffic accident investigator may become involved in such activities associated with but not a part of the actual accident as emergencies, hit-and-run investigation, liability for damages, providing information, and testimony. Emergencies may involve fire, hazardous materials, pollution, electrical hazards, injured persons, deaths, traffic and crowd management, and theft and pilferage. The accident investigator is the key person in hit-and-run investigations, since this person generally first discovers or confirms that the accident involves evasion of responsibility.