Crime Scene Examination

Question 1

Objectives of a scene examination

Answer 1

• est. if offence committed
• est. elements of offence/basis of inquiry
• ID suspect and connection with victim/scene
• ID people associated with offence
• Corroborate/contest witness/victim accounts
• Verify confessions/admissions
• Exclude possible defences
• Exonerate the innocent
• Corroborate/exclude other evidence

Question 2

Responsibilities of O/C Scene

Answer 2

• Freeze, control, preserve scene - ensure safe
• Brief staff on duties
• Coordinate scene examination
• Comms scene-O/C Investigation
• Photo/examine scene by specialists before search
• Est. CAP
• Reconnaissance
• Plan strategy for Forensic Examination
• Uplift, inspect, deliver exhibits
• Prove exhibits in court

Question 3

What is a Reconnaissance

Answer 3

A preliminary inspection or survey, to get an overall picture of the scene, without disturbing the evidence.

Question 4

Steps for conducting a reconnaissance

Answer 4

• Gather info from staff at scene, witnesses, victim
• Est. CAP - without disturbing scene
• Sketch scene and note anything of significance
• Take action to preserve evidence - weather/animals
• Reconsider scene boundaries
• Consider placement of zones (hot, warm, cold)

Question 5

What should a scene strategy cover

Answer 5

• placement of zones (hot, warm, cold)
• protection methods - avoid contamination
• exhibits handling
• deterioration of evidence
• specialists required
• tasks/areas of responsibility
• starting place (offender’s entry)
• search methods
• recording system

Question 6

Exhibit handling/packaging at the scene

Answer 6

• use stepping plates and zones (hot, warm, cold)
• use protective clothing incl. face mask, double gloves - remove outer glove between handling each exhibit
• use new, clean packaging materials
• Keep accurate records
• Avoid examining assoc. scenes incl. the victim
• Ensure integrity and continuity with correct recording, packaging, sealing and labelling.