top down approach Flashcards
offender profiling, top down profiling, organised/disorganised crime, types of serial killers
aim of profiling
to narrow down the range of potential suspects
the 3 main goals of profiling
- social and psychological assessment - basic info;age sex race
- evaluation of belongings - posessions that may associate offender with crime scene; photos, pornography
- interviewing suggestions and strategies- specific startegies for certain offenders; appeal to their ego
4 main aspects of top down profiling
- profile generation
- data assimilation
- crime reconstruction
- crime scene classification
profiler generation definition
a hypothesis related to the likely offender e.g ethnicity, accent
data assimilation definition
a profile reviews all evidence e.g photos, pathology reports
crime scene classification meaning
classing the crime [scene] as either organised or disorganised dependant on its characteristics
crime reconstruction meaning
a hypothesis in the term of events, for example the behaviour of the victim
offfender profiling definition
the processs of deducing the characteristics of the offender from the features of the offence and features of the crime scene
modus operandi definition
the method or habits on which a crime is carried out
when was the top down approach created, and who by
- by the FBI but ore specifically, Ressler
- in the 1970s
what did the FBI do in the top down approach
- interviewed 36 different sexually motivated serial killers
- deduced different categories of killers
- put new offenders into a pre existing type of serial killer
what type of approach was the top down approach
a typology
what are organised murder scene characteristics?
- planned
- victim is a stranger
- agression before death
- body is hidden or removed from the scene
- weapon ad evidence is absent
- controlled talk
- control including restraints
what are characteristics of an organised murderer
- more than average IQ
- inconsistent discipline as a child
- living with a partner
- socially and sexually competent
- use of alcohol during crime
- mobile e.g car
- limited change in behaviour after crime
what are disorganised murder scene characteristics ?
- spontaneous, not planned at all
- victim is a known person to the offender
- little control on the attack/victim
- sexual acts before death
- body not hidden, left at the crime scene
- evidence will be present
what are characteristics of a disorganised murderer
- less than average IQ
- lives alone
- lives near the crime
- unstable
- major change in behaviour after crime
- socially and sexually incompetent
- harsh discipline as a child
who classified serial killers into types by theor motivations?
2 people
Holmes and Walters
what are the 5 classifications of serial killers?
- visionary
- mission orientated
- hedonistic lust
- hedonistic thrill
- power/control
characteristics of a visionary serial killer
- hear voices from angels,devils and god telling them to murder
- is a quick act, job done
characteristics of a mission orientated killer
- focused on the act itself
- feels unworthy and not good enough if the job isnt done
characteristics of a hedonistic lust killer
- sex is the main point of the murder
- pleasure is found from te murder
- murder usually involves cannabalism, necrophelia and dismemberment
characteristics of a hedonistic thrill killer
- pleasure/excitement of killing
- once the victim is dead the thrill is over
- usually involves long processes or acts of torture when killing
characteristics of a power/controlling killer
- gratification of having control over the victim
- seen as a master to victim
- motives drive by a need for power or dominance
evaluation-weakness
why does the top down approach only work on some crimes?
- only works on a crime that has a wealth of information on the offender
- common burglary or damage to property doesnt fit into the categories