Forensic Psychology Flashcards
What are the different types of offender profiling
- top down approach
- bottom up approach
What is offender profiling
- behavioural and analytical tool
- intended to help investigators accurately predict and profile the characteristics of unknown offenders
- uses information about the crime, crime scene and victim
Who created the top down approach
FBI
- 1970s
Factors that help create the suspect pool
- offenders personality
- age
- race
- type of employment
- religion
- marital status
- level of education
What is the top down approach
- profiles start with pre established typology
- work down to lower levels to assign the criminal to one of two categories
What are the two categories for the top down approach
- organised offender
- disorganised offender
How was the top down approach created
- interviews of 36 sexually motivated serial killers
- classified the crimes as either organised or disorganised
- based on offenders behaviour and the type of victim - then able to predict other characteristics that were likely to
Examples of organised offenders
Ted Bundy
What is the murder like for organised offenders
- plan crime in advance
- show self control at the scene
- leave little evidence
- victim likely to be a targeted stranger
- attempts to control victim
What is the offender profile like for organised offenders
- intelligent
- skilled occupation
- socially/sexually competent
- married/cohabiting
- likely to follow the story in the media
Examples of disorganised offenders
- Charles Manson
- Jeffery Dahmer
What is the murder like in disorganised offending
- little evidence of planning
- likely to leave more clues
- spontaneous
- likely to be know by the victim
What is the offender profile like for disorganised offenders
- socially inadequate
- unskilled occupation
- sexual problems (abuse)
- lives along
- live close to the crime scene
What are the 4 main stages for constructing an FBI profile
- data assimilation
- crime scene classification
- crime reconstruction
- profile generation
What happens in data assimilation - FBI profiles
- reviewing all the information
- police reports, photos, crime scene
What happens in crime scene classification - FBI profiles
- decide if the crime is organised or disorganised
What happens in crime reconstruction - FBI profiles
- make hypothesises about what happened
- based on victim behaviour and crime sequences
What happens in profile generation - FBI profiles
- present the profile hypothesis
- physical characteristics, behavioural habits
What is the bottom up approach - offender profiling
- doesn’t begin with a fixed typology
- investigator scrutinises the details of the offence/crime scene “data driven”
- data put into a software: helps analyse data
- much more grounded in psychological theory
Who created the bottom up approach
David Canter
- attempted to move offender profiling into a more scientific _ empirical domain
What are the different parts of the bottom up approach
- investigative psychology
- geographical profiling
What is investigative psychology
- applying statistical procedures
- centralised data base
- establishes patterns of behaviour
- allows you to link crimes
- develops a statistical database
What is the 5 factor model of investigative psychology
- interpersonal coherence
- criminal career
- forensic awareness
- criminal characteristics
- significance of time and place
What is interpersonal coherence - investigative psychology
Consistency between crime and real life