Forensics Flashcards
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What is offender profiling?
A tool to help investigate to accurately predict likely offenders.
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What are the two types of offender profiling?
Top down approach, bottom up approach
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What is the top down approach?
Offenders are assigned to one of two pre-existing categories based on witness accounts and evidence from the crime scene.
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What are the two categories in the top-down approach?
Organised and disorganised offender
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What is an organised offender?
Evidence of planning, targets victims, socially and sexually competent, higher than average intelligence
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What is a disorganised offender?
Little evidence of planning, leaves clues, socially and sexually incompetent, lower than average intelligence
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What are the four stages of an FBI profile?
- Data assimilation= the profiler reviews the evidence (photos, pathology reports, witness report)
- Crime screen classification= organised or disorganised
- Crime reconstruction= hypothesis in terms of sequence of events, behaviours of the victims etc.
- Profile generation= hypothesis related to the likely offender e.g. demographic background, physical characteristics, behaviour
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What is the bottom up approach?
Data driven approach, using statistical data on smaller crimes.
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What is investigative psychology?
Apply statistical procedures alongside psychological theory to the analysis of crime scene evidence. We establish patterns of behaviour.
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What is interpersonal coherence?
How they behave at the scene relates to how they behave in real life.
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What is forensic awareness?
Describes those individuals who have been the subject of police interrogation before, may know how to cover traits.
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What is geographical processing?
Uses info about the location of linked crime scenes to infer a home or operational base.
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What is spacial consistency?
When an offender commits crime within a limited geographical space.
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What is modus operandi?
The way criminals commit crimes
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What is the marauder?
Commits crimes near the home base
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What is a commuter?
Travelled from their home base to commit crimes
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What are some examples of features in the atavistic form?
Big ears, long arms, dark skin, protruding jaw, deformed skill
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What are some non-physical features of the atavistic form?
Insensitivity to pain, slang, tattoos, unemployment
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What is the idea of genes causing ciminality?
Suggests would be offenders inherit a gene or combinations, this predisposed them to commit crimes
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What does the diathesis stress model suggest?
Offending is caused by a combination of biological and environmental factors.
Could have a genetic predisposition, and can be triggered by an environmental, biological, or psychological.
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What is criminality associated with? (Disorder)
Antisocial personality disorder, associated with a reduced emotional response and lack of empathy for the feelings of others
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What are mirror neurones?
People with APD can experience empathy when they want to
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What parts of the brain are affected?
Prefrontal cortex, amygdala and the temporal lobes