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Flashcards in Crime scene examination Deck (10):

What is the objectives of a crime scene examination

• Defences (exclude possible)

• Establish if offence has been committed

• Corroborate or contest witness and victim accounts

• Identify the Suspect and establish his contact with the scene or victim

• Establish offence key elements and provide facts for basis of enquiry

• Verify admissions and confessions

• Exonerate the innocent

• Identify people associated with the offence

• Corroborate or exclude the other evidence relating to the offence or incident


What is the responsibilities of OC scene/Crime scene manager

• Control, freeze, preserve the scene and ensuring it is safe

• Brief attending staff

• Uplifting, inspecting and ensuring delivery of labelled exhibit to exhibit recorder

• Establish a common approach path from police cordon to scene focal point

• Proving relevant exhibits in court

• Planning a strategy for forensic examination

• Coordinating and overseeing the crime scene examination

• Providing a communication link between the scene and the oc investigation

• Conducting a reconnaissance to gain an overall picture of the scene and testing possible reconstructions

• Ensure the scene photographed, fingerprinted and examined by specialists before it is searched


Scene Examination Process

1. Reconnaissance
2. Formulate strategy
3. Actions taken prior
4. Conduct crime scene examination
5. Actions taken after


Definition reconnaissance

A reconnaissance is the preliminary or survey made to get an overall picture of the scene without disturbing the evidence.


What is the purpose of a reconnaissance?

Is to allow you to make of formulate:
- a preliminary reconstruction
- an appreciation
- a plan of action


Steps of reconnaissance

1. Gather information available
2. Create a common approach path
3. Sketch the scene
4. Note anything – weather / forensic
5. Reconsider scene boundaries
6. Consider hot / warm / cold zones


What should the Crime Scene Examination Plan (Forensic Strategy) cover?

Starting place (PoE)
Likelihood of evidence deteriorating
Any specialists required
Placement of hot warm cold zones
Search method - logical and systematic
Recording system (exhibit schedules / inventories / job sheets)
Individual tasks/responsibilities
Protection methods for ensuring no contamination
Exhibit handling


Minimising contamination risks

• Preserve and control the scene
• Records of personal attending and examining
• Ensure exhibit integrity
• Stepping plates
• Obtain elimination foot / finger prints and DNA
• Avoid examining associated crime scenes
• Keep scene activity and seizure records
• Use protective clothing
• Use new and clean packaging material


Actions prior to attending scene

• Cordons have been set up
• Legal requirements
• Additional O/C appointed (scenes, body etc)
• Specialists have been contacted
• Staff members have been briefed
• Equipment sent or requested
• Sufficient staffing


Actions prior to leaving the scene

• Ensure all uplifted exhibits are packaged and labelled correctly

• Ensure the scene is secure

• Ensure the scene guard is in place and has been briefed

• Make contact with the O/C Investigation to ensure they are aware you are leaving the scene and have no further instructions for you before leaving