forensics - offender profiling Flashcards
what is offender profiling?
investigative tool employed by the police when investigating crime to narrow down the potential offenders.
when and who developed the top down approach?
Developed in 1970s, US by the FBI
how was top down approach developed?
Behavioral science unit gathered date from interviews with 36 sexually motivated serial killers.
what is the top down approach also called?
typology
what is the typology approach?
offender profilers will match what is known about offender/crime to pre-existing templates. There classified into either organized or disorganized
what is a disorganised crime?
spontaneous, impulsive, low IQ, unskilled, live alone
what is a organised crime?
planned, particular victim, controlled, ^ IQ, sexually + socially competent
structure of FBI profiling
1) data assimilation
2) crime scene class
3) crime reconstruction
4) profile generation
what are two examples of offender profiling?
the top-down approach
bottom-up approach
what is the aim of the bottom up approach?
generate picture of the offender, likely characteristics, behavior and social background through systematic (empirical) analysis of the crime scenes
what is the difference between top-down and bottum-up
doesnt begin with typologies it is data driven
what does investigative psychology use to asses crime?
statistical analysis and psychological theories
what are two forms of the bottum up approach
investigative psychology and geographical profiling
what is interpersonal coherence?
this is the idea that is central to inveistigative psychology how an offender act with their victim may reflect their behaviour in everyday situations
what is forensic awareness?
it is people who have been in crime before, their behaviour may show how well they are at covering their tracks
what variables are key for investigative psychology?
interpersonal coherence
time and place
forensic awareness
who first proposed geographical profiling?
kim rossmo