10. Offender profiling Flashcards
What is offender profiling?
Construction of a psychological, behavioural and demographic profile of the type of person likely to have committed an offence.
Two types of analysis
- deductive (bottom-up)
- inductive (top-down)
Actuarial vs. clinical method
ACTUARIAL: considers how groups of individuals with similar characteristics have behaved in the past
CLINICAL: aims to use a wider range of subliminal behaviour signs than other approaches to profiling
Two key concepts
BEHAVIOURAL EVIDENCE: things that tell us how an offender went about committing a crime
CRIMINAL CONSISTENCY: the idea that a person’s behaviour at a crime scene is consistent with their behaviour in other contexts
Modus operandi
Method used to commit the crime
Personation
Acts carried out by the offender that are not necessary to carry out the offence (e.g. pseudo-intimacy, unnecessary violence)
Criminal signature
Personation in serial offenders carried out every time they offend
Staging
Offender deliberately manipulates the crime scene to avoid implicating himself in the offence
Trophy
Offender takes an item related to the crime from the scene
Souvenir
Offender takes an item unrelated to the crime from the scene
Undoing
Offender attempts to “undo” offending behaviour by making it not quite so bad
Case linkage (linkage analysis)
Identifying behavioural similarities across offences that suggests they have been committed by the same offender
Typological profiling
Developed by the FBI
Top-down process
Crime scene analysis
Investigative psychology
David Canter
Bottom-up approach
No initial assumptions made about offender