Answer to Question 1
Isolate the Accident Scene
The accident scene should be isolated until all pertinent evidence has been collected or observed. The purpose is to maintain as closely as possible the conditions that existed at the time of the accident.
Record All Evidence
Make a permanent record of all pertinent evidence as quickly as possible.
Photograph or Videotape the Scene
Photographic and videotaping technology has simplified the task of observing and recording evidence.
Identify Witnesses
It is important to compile a witness list of three categories: primary witnesses, secondary witnesses, and tertiary witnesses.
Interview Witnesses
Every witness on the list should be interviewed in the order of the above categories.
Answer to Question 2
Depending on task at hand, safety and health professionals conduct the accident investigation itself, involved in conducting an accident investigation, at least study the accident report and be consulted regarding recommendations for corrective action, a member of the team with the team approach. Regardless of the approach, a safety and health professional should play a leadership role in collecting and analyzing the facts and developing recommendations.