trace evidence
Note and record details of setting, pre and post observations
Interviews with first responder, victim, witnesses
Request medical assistance if needed
Detain suspects and witnesses
Isolate the scene
Conduct initial walk through
Crime scene investigator
lights on/off
Responding officer
Protect physcial evidence from being altered
Lead detective
signs of prior activity
Note bodies condition and estimate TOD (medical examiner)
Note transient and conditional evidence
doors locked/unlocked
Determines nature of crime
temperatures and odors
