- Created by: Rosiem2102
- Created on: 25-02-19 10:34
- Investigative tool employed by police when solving crimes.
- Narrow field of enquiry and the list of likely suspects.
- Professional profilers often called upon to work alongside police, especially during high profile murder cases.
- Compiling profile often involves careful scrutiny of the crime scene and analysis of evidence (inc. witness reports) in order to generate a hypothesis about the probable characteristics of the offender (age, background, occupation, etc.)
The American Approach
- Originated in the US as a result of FBI work in the 1970s.
- FBI's behavioural science unit drew upon data gathered from in-depth interviews with 36 sexually motivated serial killers including Ted Bundy and Charles Manson.
- Offender profilers will match what is known about the crime and the offender to a pre-existing template that the FBI developed.
- Murderers or rapists are classified into one of two categories (organised or disorganised) on the basis of evidence.
- This classification informs the subsequent police investigation.
Organised and Disorganised types of offender
- Evidence of planning the crime in advance
- Victim is deliberately targeted and will reflect the offender's 'type'
- High degree of control during crime and may operate with almost detached surgical presicion
- Little evidence left at the scene
- Tend to be of above-average intelligence in a skilled, professional occupation
- Socially and sexually competant
- Usually married and may even have children
- Little evidence of planning (spontaneous)
- Body usually still at the scene
- Little control on the part of the offender
- Lower than average IQ and in unskilled work or unemployed
- History of sexual dysfunction or failed relationships
- Tend to live alone and often very close to where the offence took place
Constructing an FBI profile
Four main stages:
1. Data assimilation - the profiler reviews the evidence (crime scene photographs, pathology reports, etc.)
2. Crime scene classification - as either organised or disorganised
3. Crime reconstruction - hypothesis in terms of sequence of events, behaviour of the victim, etc.
4. Profile generation - hypothesis related to the likely offender, e.g of demographic, background, physical characteristics, behaviour, etc.