Description should include
- posting guard(s) at the scene and preventing unauthorized personnel from entering
- boarding doors and windows
- marking, tagging, and photographing all evidence
- logging the names of personnel at the scene
- using special containers for preserving vapors released by charred evidence.
Process/Skill Questions:
- When and why does the fire department’s authority end at a fire scene?
- Why is it a good idea to record the names of personnel at a fire scene?
- Why would any unauthorized person try to gain entrance to a crime scene?
- What container preserves the head-space vapors?
- What is the absorption-elution method for containing arson evidence?