Crime Scene Investigation Flashcards
(21 cards)
What is the first step in police work according to investigative theory?
Establish what happened at the incident
Knowledge is power.
What does a complainant statement initiate in a criminal investigation?
It commences a criminal investigation.
List the key components that need to be established during an investigation.
- Criminal offence confirmation
- Investigation through statements and evidence collection
- Identity of suspects
- Opportunity and intent
What is the goal of investigative theory in relation to evidence?
To predict the admissibility of the evidence collected.
What types of evidence are identified in the document?
- Testimony
- Real Evidence
- Documentary Evidence
Who are the main sources of evidence?
- Complainant
- Witness
- Physical or forensic evidence
Define forensics.
Used in courts of law.
What is forensic science?
The application of science to criminal and civil laws enforced by Police agencies.
What does criminalistics involve?
The use of physical science in investigating crime.
What is criminology?
The scientific study of crime.
What is Locard’s Principle?
Whenever two objects come into contact, there is an exchange of materials between them.
What is trace evidence?
Physical evidence transferred to or taken from a crime scene.
List examples of trace evidence.
- Blood
- Hair
- Fingerprints
What does physical evidence include?
Any tangible article that proves or disproves a point in question.
What is a key consideration in handling physical evidence?
Proper collection, cautious handling, and maintaining continuity.
What is the concept of linkage in evidence collection?
Linking the accused, crime scene, victim, and evidence to one another.
List biological materials relevant to crime scenes.
- Blood
- Hair
- Fingerprints
- Skin
- Saliva
- Semen
- Sweat
- Urine
What are the responsibilities of the first officer at a death scene?
- Assess what happened
- Make initial observations
- Preserve life if possible
- Preserve evidence
- Apprehend suspects
- Make quality notes
Under what circumstances can police declare death?
- Decapitation
- Transection
- Decomposition
- Massive head injury
What are the key aspects of processing a crime scene?
- Knowledge of what to look for
- Skills and tools
- Methodology approach
- Flexibility
- Coordinated effort
What should be ensured for a coordinated effort in crime scene processing?
Everyone must be competent at their job.
