Offender Profiling Flashcards

1
Q

What is offender profiling?

A

-behavioural + analytical tool that is intended to help investigators accurately predict the characteristics of unknown offenders

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2
Q

What is the top-down approach?

A

-profilers start with a pre-established typology and work down to lower levels in order to assign offenders to one of 2 categories based on evidence

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3
Q

What is an organised offender?

A

-shows evidence of having planned the crime in advance

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4
Q

What is disorganised offender?

A

-shows little evidence of planning

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5
Q

What are the key characteristics of an organised offender?

A

-has a ‘type’ of victim
-maintains high degree of control
-little or no clues left
-above average IQ
-professional qualification

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6
Q

What are the key characteristics of a disorganised offender?

A

-shows little evidence of planning
-may be spontaneous act
-scene reflects impulsive nature of attack
-lower than average IQ
-unskilled or unemployed
-history of failed relationship

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7
Q

What are the 4 parts to an FBI profile?

A
  1. data assimilation
  2. crime scene classification
  3. crime reconstruction
  4. profile generation
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8
Q

What is supporting evidence to the top down approach?

A

-works best with certain types of crimes
-eg. rape, arson, dissection of bodies or cult killings

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9
Q

What is a criticism of the top down approach?

A

-Alison
-typology classification system is based on assumption that offenders patterns and behaviours haven’t changed
-it is based on static models of personality
-poor validity when it comes to identifying possible suspects and for trying to predict their next move

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10
Q

What is a limitation of the top down approach?

A

-evidence doesn’t support the ‘disorganised offender’
-Godwin - asks how police investigators would classify a killer with high IQ + sexual competence who commits a spontaneous murder where the victims body is left at scene
-has caused others to create a more detailed typological models
-Holmes suggest there are 4 types of serial killers

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11
Q

What is the bottom up approach?

A

-profilers work up from evidence collected to develop hypotheses about the likely characteristics of the offender

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12
Q

What is investigative psychology?

A

-matches details from the crime scene with statistical analysis of typical offender behaviour patterns

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13
Q

How is investigative psychology helpful?

A

-can establish patterns of behaviour likely to occur
-develop a statistical database = allows comparison
-can determine if a series of offences are linked

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14
Q

What are the 3 parts to investigative psychology?

A
  1. interpersonal coherence
  2. significance of time and place
  3. forensic awareness
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15
Q

What is interpersonal coherence?

A

-way an offender behaves at the scene, may reflect everyday behaviour

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16
Q

What is forensic awareness?

A

-those who have been the subject of interrogation before

17
Q

What is geographical profiling?

A

-offenders operational base are revealed by location of previous crimes

18
Q

What is geographical profiling based of?

A

-spatial consistency
-can be used in conjunction with psychological theory to create hypotheses

19
Q

What is spatial consistency?

A

-people commit crimes within a limited geographical space

20
Q

What is the assumption of geographical profiling?

A

-that serial offenders will strict their work to area they are familiar with
-understanding the spatial pattern of their behaviour provides a centre of gravity
-which is likely to include the offenders base

21
Q

What is the basis of Canter’s circle theory?

A

-pattern of offending forms a circle around the offenders home base
-leads to 2 descriptions of offenders

22
Q

What is the marauder?

A

-operatives in close proximity to their home base

23
Q

What is the commuter?

A

-travelled distance away from usual residence

24
Q

Why is spatial decision making helpful?

A

-insight into the nature of offence
-if it was opportunistic or planned
-mental maps
-mode of transport
-employment status
-approximate age

25
Q

Briefly explain one limitation of a method of offender profiling

A

-it is based on assumption that offenders patterns and behaviours haven’t changed
-poor validity when it comes to identifying possible suspects and for trying to predict their next move

26
Q

What support did Rossmo find in relation to geographical profiling?

A

-offenders have a ‘hunting pattern’
-through examining locations and their spatial relationship to each other
-know more about where the criminal is located

27
Q

Explain the bottom up approach to offender profiling

A

-profilers work up from evidence collected to develop hypotheses about the likely characteristics of the offender
-investigative - matches details from the crime scene with statistical analysis of typical offender behaviour patterns
-can establish patterns of behaviour that is likely to occur
-geographical - offender operational base are revealed by location of previous crimes based on spatial consistency

28
Q

What is support to investigative psychology?

A

-there is evidence to support its use
-Canter + Heritage conducted an analysis of 66 sexual assault cases
-data was examined using smallest space analysis
-several behaviours were identified as common in different samples of behaviour
-each individual displayed a characteristic pattern of such behaviour
-this helps establish whether 2 or more offences were committed by the same person
-supports basic principle of investigative psych

29
Q

What is support to geographical psychology?

A

-Lundrigan + Canter collated info from 120 murder cases involving serial killers in the US
-smallest space analysis revealed spatial consistency in the behaviour of the killers
-the location of each body disposal site created a centre of gravity
-create a circular effect around home base
-effect was more noticeable for offenders who travelled short distances
-supports the view that geographical info can be used to identify an offender

30
Q

What is a limitation to geographical profiling?

A

-may not be sufficient on its own
-the success of geographical is reliant on the quality of data that the police can provide
-recording of crimes isn’t always accurate and can vary between police forces
-75% of crimes aren’t reported to police in the first place
-calls into question the utility of an approach that relies of the accuracy of data
-even if info is correct - critics claim that other factors are just as important when creating a profile
-suggest geographical alone may not always lead to the successful capture of an offender