Forensics psychology Flashcards
Compare some characteristics of organised and disorganised offenders.
Organised
- Plans crime
- High degree of control
- Little/no clues left
- Socially and sexually competent
- High IQ
- Targeted victim
- Interested in the crime
Disorganised
- Literally the opposite
(Dead Cows Rarely Poo)
What are the four main stages of the construction of a profile using the top-down approach?
Data assimilation
Crime scene classification
Crime reconstruction
Profile generation
What are the two main aspects of the bottom-up approach?
Investigative psychology (creating a baseline for comparison)
Geographical profiling
What is a commuter?
Someone who travels away from their base point to commit crimes.
What is a marauder?
Someone who commits crime around a base point often their home.
Explain spatial consistency.
The consistency of where crimes were committed.
Explain what a modus operandi is.
The unique method someone uses to commit crimes.
What did Canter and Heniage find?
Conducted an analysis of 66 sexual assault cases and identified common. behaviors, they also discovered that each assaulter has their own patter of behavior at the crime scene this helps establish case linkage and therefore shows that the bottom-up approach is useful and valid.
What did Copson find?
He found that that advice provided by the profiler was judged to be ‘useful’ in 83% of cases but in only 3% of cases it led to accurate identification of the offender.
Explain the Rachel Nichol case.
In 1992 Rachel Nickell was stabbed 47 times on Wimbledon Common and sexually assaulted investigation from the profiler led to police targetting Colin Stagg and the police had an undercover policewoman fake a relationship with him for 5 months to try and get a confession, in 2008 Robert Napper was convicted of the murder having been originally left out as he was several inches taller than the profile.
Define Lobroso’s atavistic form.
Linking physiological features (largely facial features) to criminality, Lombroso argued it easy to spot criminals as they are not fully evolved, their savage and primitive nature would make it impossible for them to fit into ‘normal’ society.
Give some main features of the atavistic form.
Whilst different types of criminals have different features the main ones are:
strong jaw, high cheekbones, facial asymmetry, sloping brows, and dark skin.
What was the sample for Lombroso’s study?
383 dead criminals sculls, 3829 alive criminals
Explain Lange’s reasearch into the biological explanation of offending.
Looked at 13 MZ and 17 DZ twins, 10 of the MZ had served time compared to only 2 of DZ.
Research into 800 Finnish offenders found what two abnormal gene patterns?
MAOA- responsible for the breakdown of excess neurotransmitters.
CDH13- Linked to ADD