5.2 Offender Profiling: The Top-Down Approach Flashcards
factors of a disorganised type offender
- lower IQ
- low social competence
- many clues at crime scene
- little evidence of engagement with victim
Factors of an organised type offender
- high IQ
- socially competent
- planned crime may engage in violent fantasies
What is offender profiling?
A method of working out the characteristics of an offender by examining characteristics of the crime and crime scene
What is the top down approach?
Analysis of previous crimes creates a profile of a likely offender. Profiler relies on intuition and beliefs.
Where did the top down approach originate?
With the FBI - intuitive application of profilers prior experience
What are the 6 steps to the top down approach?
- profiling inputs
- decision process models
- Crime assessment
- Criminal profile constructed
- Crime Assessment if new information
- Apprehension
What are profiling inputs?
All the data collected eg. details of crime scene, information about victim
What are decision process models?
profiling inputs organised into meaningful patterns eg. murder type
What is a crime assessment?
Classify offender into organised or disorganised using the information from the crime
What is a criminal profile used for?
Used to plan investigation, including where to look and how to interview offender
What is done at the apprehension stage of the top down approach?
If apprehended the profile generating process is reviewed to check that each stage the conclusions were legitimate. And to see how it could be revised for future cases
Evaluate the top down approach to offender profiling (5)
- Is it useful? 82% of police officers questioned said yes, 90% would use it again. Also offers different perspective
- Flawed basis - based on interviews with murderers who aren’t typical and more likely to be dishonest
- Potential harm - Snook claims that the profilers are as useful as psychics and may mislead investigation
- measuring accuracy in terms of closeness of profile to actual offender is not reliable. Alison found that 50% of police rated fake (wrong) profile as accurate
- organised and disorganised profilers more likely a continuum rather than two categories
What percentage of police officers said the top down approach was useful? how many said they’d use it again?
82% said useful
90% said they’d use it again
How many police officers rated fake (wrong) profiles as accurate in a study done by who?
50%
Alison