Offender profiling Flashcards
Offender profiling
Collection of empirical data in order to build up a picture of the characteristics of those involved in a certain type of crime
The primary aim of offender profiling
Assist investigative practice and provide advice to the police to help solve the crime and identify offenders
Ebiske (2008)
Profiling involves using an understanding of human behaviour. motivation and pathology = characteristics of the perpetrator
Top-down approach
- Crime-scene analysis
- Evidence from the crime scene is compared to patterns from previous crimes in order to make a prediction about more crimes and the likelihood of when and where they will occur.
- Starts with the big picture and then fills in the details
4 key stages of crime-scene profiling
- Data assimilation
- Crime classification
- Crime reconstruction
- Profile generation
Data assimilation
- Police reports
- Crime scene
- Photographs
- Pathology reports
Crime scene classification
- Organised
- Disorganised
Crime reconstruction
Hypotheses;
- Victim behaviour
- Crime sequence
Profile generation
Present hypotheses;
- Demography
- Physical characteristics
- Behavioural habits
Organized offender
- Psychopathic - kills after critical life event
- Highly organized in most facets of life
- Cleans up the crime scene and removes or covers up evidence
- Planned, controlled and targetted victim
Disorganized offender
- Psychotic - emotionally aroused
- Disorganized and chaotic lifestyle
- Little or no attempt to tidy up the crime scene
- Little evidence of planning and random victim
SPOT burglary styles
- Opportunistic
- Organized
- Disorganized
- Interpersonal
Opportunistic
Offence description
- Unlawful entry - entry left open
- No preparation or tools
- Unoccupied residence
- Low-value items stolen
- Little evidence left behind
Offender description
- Young
- Adolescent onset
- Short criminal career
- Low offending frequency
- Don’t know the victim
- Mostly male
- Don’t have a car
- Versatility, prior petty theft/ shoplifting arrests
Organized
Offence description
- Clean but forced entry
- Tools brought to the scene
- No evidence left behind
- High-value items stolen
Offender description
- Older
- Adolescent onset
- High offending frequency
- Limited versatility - prior arrests for theft/burglary
- Often have a car
- Lives with someone/partner
- May have met victim
Disorganized
Offence description
- Forced entry
- Scene left untidy
- Tools/ evidence left
- Low-value or no items stolen
Offender description
- Young
- Early-onset
- Long criminal career
- High offending frequency
- Versatility - past arrest for drugs offences
- Don’t know victim
Interpersonal
Offence description
- Occupied residence
- Victim targeted
- Attempted, threatened or committed violence at scene
- Personal items stolen
Offender description
- Adult
- Late criminal onset
- Solo offender
- Have a car
- Single/ not cohabiting
- No record/ arrested for violence
- Female victims
- Know of victims
Bottum-up approach
Developed in the UK that uses statistical databases to look for consistencies in an offender’s pattern of behaviour when committing a crime.
- Starts with details and creates a bigger picture
Investigative psychology
- Statistically based attempts to identify patterns in different crime characteristics + consideration of geographical factors in undertaking crime
- Analyse behaviour and social interactions between offender and victim
Canter and Larkin (1993)
Two types of offending;
- Marauder - doesn’t stray far from their home base
- Commuter - move well away from it to commit their crime
Key psychological principles
- Interpersonal coherence
- Time and place significance
- Criminal characteristics
- Criminal career
- Forensic awareness
Interpersonal coherence
- Actions of the offender will be the norm to them
eg/ type of victim may reflect the subgroup the offender belongs to
Time and place significance
- Offender needs to be in control so they will choose a specific place
eg/ Marauders or Commuters
Criminal characteristics
- Analysis of crimes/ offenders assists classifying and identifying behaviour patterns
Criminal career
- Number of times crime repeated + with growing confidence may increase