464596
Description
Mind Map by Dominic Ramsay, updated more than 1 year ago
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Created by Dominic Ramsay
over 10 years ago
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Offender Profiling
- 3.1 Top Down Approach
Study: Canter et al (2004)
- Top Down approach believes that if you can
identify the modus operandi associated with a
crime then the motive of the perpetrator will also
be able to be established
- Roy Hazelwood and Jon Douglas
concluded that all murderers fitted
into two main types of categories
(organised and disorganised)
- Nomotheic
- Nomotheic
- Procedure: Content Analysis (examination of a collection of data from
an already existing source) of 100 cases of serial killers from the USA
- Top Down approach believes that if you can
identify the modus operandi associated with a
crime then the motive of the perpetrator will also
be able to be established
- 3.2 Bottom Up Approach
Study: Canter and Heritage
- Developed by David Canter
- Focuses on developing a profile from the
details of the crime scene rather than the
application of generalised typology
- Idiosyncratic
- Idiosyncratic
- Procedure: Focuses on developing a profile from
the details of the crime scene rather than the
application of generalised typology
- Geographical Profiling
- Developed by David Canter
- 3.3 Case Studies
- Canter-John Duffy 'The Railway Rapist' -
Bottom Up Approach :)
- Drawing on his study of the details of the crime scene
combined with geographical profiling Canter developed
a bottom up profile for the suspect. This profile was
used to narrow down a suspect list of 2000 people
- Drawing on his study of the details of the crime scene
combined with geographical profiling Canter developed
a bottom up profile for the suspect. This profile was
used to narrow down a suspect list of 2000 people
- Murder of Rachel Nikell - Top Down Approach :(
- Paul Britton used the Top Down approach
to falsely accuse Colin Stagg of the
murder. David Canter defended him using
the Bottom Up approach.
- Paul Britton also deduced that
the murder of Samantha Bisset
was not connected to this not
- Paul Britton used the Top Down approach
to falsely accuse Colin Stagg of the
murder. David Canter defended him using
the Bottom Up approach.
- Canter-John Duffy 'The Railway Rapist' -
Bottom Up Approach :)
- Evaluative Points
- :) Usefulness - Offender Profiling is useful
as it can be used by Forensic Services as
shown in the case of John Duffy
- :( Does not support Psychology as a science
as no Scientific experiments can be carried
out to test it
- :) Usefulness - Offender Profiling is useful
as it can be used by Forensic Services as
shown in the case of John Duffy
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