Offender Profiling: Bottom - Up Approach

Question 1

What is bottom - up profiling

Answer 1

. Looks for consistencies in offender’s behaviour during crime
. Uses no pre-established typology - develops profile as crime scene and EWT are increasingly analysed

Question 2

Aims of bottom - up approach

Answer 2

Generate picture of the offender through systematic analysis of evidence at crime scene
^ ‘data driven’

Question 3

Smallest Space Analysis

Answer 3

Computer database and programme, patterns identified to see if offensives are linked - relationships between types of crime and people

Question 4

Investigative Psychology

Answer 4

.Attempt to apply statistical procedures, alongside psych theory to analysis of crime scene evidence
. Help develop statistical ‘database’

Question 5

What is interpersonal coherence

Answer 5

Central to approach, way offender acts at scene

Question 6

Geographical Profiling

Answer 6

Uses location to make inferences about likely home of offender - crime mapping
Assumption = serial offenders operate in familiar geographical acres - provides investigators with ‘centre of gravity’

Question 7

Centre Circle Theory
(Geographical Profiling)

Answer 7

2 models of offender behaviour:
The marauder = operates close to their home
The commuter = likely to have travelled

Question 8

Evaluation

Answer 8

Evidence support (Investigative Psych) = content analysis of 66 SA cases - using small space analysis. Several common characterstics

Evidence support (Geographical Profiling) = collected info from 120 murder cases by serial killers