aim is to generate a picture of the offender through systematic analysis of evidence at the crimescene
doesn't have fixed topologies/categories
done through databaseanalysis and is more grounded in psychological theory
aims to create hypotheses about offenders modus operandi
includes - geographical profiling, investigative psychology, small space analysis, interpersonal coherence
what is investigative psychology?
matches details from crime scene with statistical analysis of typical offender behaviour patterns, based on psychological theory
includes interpersonalcoherence
what is geographical profiling?
uses locations of linked crime scenes to make inferences about operationalbase and identity of offender
use of crime mapping which is based on spatial consistency, assumes offenders will restrict 'work' to familiar areas, providing a 'centre of gravity'
includes canter's circle theory, small space analysis and space and time
what is small space analysis?
the output from the programmes used to generate a profile based on the evidence of a crimescene, closer to the middle the factors are when you rate them, the more likely they are to have a positivecorrelation with each other
a part of investigative psychology
what is Canter's Circle theory?
helps to establish the likely location of the home of an offender using the distribution of offences
two types - commuter model (offences away from home) or marauders model (offences close to home)
helps to gain insight into nature of offence - planned or opportunistic
can help to learn the mode of transport, employment status, age etc
is interpersonal coherence?
analysing offender behaviour to help the understand offender behaviour in their day-to-day life e.g. way offender may communicate with their victim can indicate attitude they display in real life
what is space and time?
central principle of geographical profiling - time and location of the crime will communicate something about the offender's own residence/employments