Forensic Psychology Flashcards
Offender Profiling
An intestigative technique by which we identify the major personality and behavioural characteristics of the offender based upon an analysis of the crimes committed
Top Down Approach
Uses the experience and intuition of a profilier, starts with pre-existing categories and goes to evidence.
- contains 7 decision-making tools
7 Decision-Making Tools in Top Down Approach
- Murder Type
- Primary Intent
- Victim Risk
- Offender Risk
- Escalation
- Time
- Location
Murder Type
- Isolated (a one-off)
- Serial (3+ in at least a month with gaps in between)
- Mass (several in one location at one time)
- Spree (several in different locations but at one time)
Primary Intent
Whether the murder was premeditated or not
Victim Risk
Was the victim high or low risk to the offender (vulnerability)
Offender Risk
Is there a high or low risk to the offender?
Escalation
Is there evidence that the crime has escalated from previous offences
Time
When was the crime committed?
Location
Where was the crime committed?
Organised Behaviour
- planned the crime
- high self control
- leaves little evidence
- deliberately targets victim/type of victim
Organised Profile
- highly intelligent
- skilled/professional occupation
- socially & sexually competent
- usually married/living with partner
- often eldest child/highest birth order)
Disorganised Behaviour
- little to no planning for the crime
- little self control
- leaves lots of evidence
- victim is often random
Disorganised Profile
- below average intelligence
- unskilled jobs/unemployed
- socially & sexually inadequate
- often lives alone or with parents
- lower birth order (youngest)
4 Main stages to contruction of an FBI profile
Data Assimilation
Crime Scene Classification
Crime Reconstruction
Profile Generation
Bottom Up Approach
Analyses evidence in comparison to evidence from previous crimes
- investigative psychology
- geographical profiling
Investigative Psychology
Use of statistical techniques alongside theory to analyse crim e scenes and establish patterns of behaviour
- uses 5 basic assumptions to help establish a profile
5 Investigative Psychology Assumptions
- Interpersonal Coherence
- Time & Place
- Criminal Characteristics
- Criminal Career
- Forensic Awareness
Interpersonal Coherence
Assumption that behaviour is consistent across situations and everyday behaviour is similar to the way a crime is commited
Time & Place
Positioning and timing of crimes give an indication as to where the perpetrator might live or work
Criminal Characteristics
Placing criminals into categories e.g. types of offences
Criminal Career
Considers how far into their criminal experience offenders are, and how their pattern of crime might progress
Forensic Awareness
Offenders who show an awareness of forensic investigation
Geographical Profiling
Generalising from the location of the crime-scenes to the likely home base of the offender, through crime-mapping
- based on the assumption that most offenders like to operate in areas they know well
- 4 main principles to help shape a profile