Offender profiling: the bottom-up approach- A01
- Created by: MollyL20
- Created on: 29-09-21 17:43
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- Offender profiling: the bottom-up approach- A01
- Investigative psychology
- 1. This is where statistical procedures, alongside psychological theory, are applied to the analysis of crime scene evidence.
- 2. This is to establish patterns of behaviour across crime scene in order to develop a statistical ‘database’ which then acts as a baseline for compariso.
- 3. This may also determine whether a series of offences are linked or committed by the same person.
- 4. In this approach, there is the concept of interpersonal coherence
- 5. The way the offender behaves at the scene may reflect their behaviour in everyday situations.
- Geographical profiling
- 1. Rossmo first discovered this technique in 1997.
- 2. This is where information is used of the location of linked crime scenes to make inferences about the likely home operational base of an offender.
- 3. It can also be used in conjunction with psychological theory to create hypotheses about how the offender is thinking as well as their modus operandi.
- 4. The assumption is that serial offenders will restrict their ‘work’ to geographical areas they are familiar with, creating a ‘centre of gravity’.
- 5. It can also help investigators to make an educated guess about where the offender is likely to strike next.
- Canters circle theory proposed two models of behaviour:
- The marauder- who operates in a close proximity to their home base
- The commuter- who is likely to have travelled a distance away from their usual residence
- Investigative psychology
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