FSC100H5 Lecture Notes - Lecture 4: Trace Evidence
Document Summary
Remain alert- assume crime is still in progress until determined otherwise. Treat scene as a crime scene unless determined otherwise. Scan area (sights, sounds or smells) indicating danger- for cbrne calls notify. Approach cautiously - in way that will reduce risk while maximizing safety appropriate authorities (cid:498)no blue canaries(cid:499) Survey for dangerous persons and take control of situation. Notify and update supervisory or investigative personnel and call for assistance or backup as required. Determining parameters if possible and secure- limitations. Primary (hot zone) greatest investigative interest and most often where. Secondary (warm zone) larger perimeter surrounding primary zone. event took place. Physical and trace evidence most likely compromised by non-forensic personnel. Generally line tape located as barrier signify crime scene perimeter. How do you maintain security? ( of both scene and evidence) Physical presence: police officers guarding the scene. Looks and barrier: preventing public access, theft and unauthorized entry. Evidence logs: maintains a consistent record of all physical evidence.
