Forensic Flashcards
(72 cards)
Hazelwood and Douglas what did they find about the top down approach ?
They studied lust motivated crimes and found that there were two distinct types of criminals organised and disorganised
How does Douglas support the top down approach ?
He found that altough it only identified the offender in 15 out of 192 cases it was said to be useful in 77% of the cases
How does Alison et al criticise the top down approach ?
She found that the top down approach works on outdated theories of the personality which suggests an offenders patterns and behaviours remain consistant throughout their criminal career
How does Holmes’ research criticise the top down approach ?
Studies 192 FBI cases and found that 88 arrsts were made but top down profiling only lead to 17% of these
How does Canter argue the bottom up approach is more effective ?
He says that it is better as it looks for consistancies in offender behaviour without any initial assumptions
What is Canters case study on John Duffy and how does it support the bottom up approach ?
He created a profile for the offender who committed 24 sexual attacks and 3 murders, all of the profile he had created matched the offender e.g. that he would be a martial artist and he was a member of a martial arts club
How do Canter and Heritage support the smallest space analysis ?
They analysed the locations of 66 sexually motivated crimes and found there were lcear patterns and trends to the location and common behaviours, this helped to identify whether it was the same offender or two different offenders
What did Canter and Gregory find about geographical profiling ?
Many offenders have a crime range of less than 2 miles due to wanting a familiar area
What does Kind argue about geographical profiling ?
There tesnds to eb a centre of gravity to where the offender is connected to whether that is their home p;lace of work etc
What did Canter argue in his circle theory ?
There are two types of offender the maurauder and the commuter these both have different charcteristics such as whether they try to discuise themselves and whether they are more likely to take a “trophy”
What did Lundrigan and Canter find in their study to support geographical profiling ?
The offenders home is likley to be central to the crimes, each disposal site is in the oposite direction to the last and this is most evident for offenders whose crimes were within 10km
What did Goodwin and Canter find to support geographical mobility ?
85% of offenders lived within the circle their crimes created
What did Goodwin and Alison find about the application of geographical profilling to other types of crime ?
they studies 215 burgalry cases and found geographical profiling to be more useful than the timing of the crime when identifying the offender
What did canter and young findbthat criticises geographical profiling ?
They argues it should be used in combination with psychological data or else it would be not useful
How does Copson criticise geographical profiling ?
Although 83% of police forces found it to be useful, geopgraphical profiling only led to the identification of the offender in 3% of cases
How do false imprisonments criticise geographical profiling ?
Examples such as Colin Stagg show that this technique is not always reliable
How do Pinizzotto and Finkle support the idea that training is needed for offender profiling to work accurately ?
The trained experts performed better in identifying the offender in 5 conditions only being beaten on a homoscide scenareo by trained detectives
Whos argued that the atavistic form was the explanation for criminaity ?
Lombrosso
What was Lombrossos study on the atavistic form ?
He found that between 383 dead and 3839 living italian criminals 40% of them showed atavistic features including large foreheads and prominant noses etc
How does Ebernhardt criticise the use of the atavistic form ?
Rgued that Lombrossos study was internally racist through the characteristics that were identified were much more likely to be found in black ethnic minority groups
What is Sheldons atavistic form argument ?
He argued thaty muscular people (mesomorphs) were more likely to be criminal and showed different behaviour characteristics than ectomorphs and endomorphs
How do Cortes and Gatti support Sheldons atavistic form argument ?
He found that in a sample of 100 dellinquents that 57% were mesomorphs
How do Gleuck and Gleuck support Sheldons atavistic form theory ?
In a sample of delinquents 60% were mesomorphs compared to 31% in a control group
How does Wadsworth criticise Sheldons atavistic form theory ?
He found that British criminals were actually more likely to be smaller than average which doesnt align with the mesomorph sheldon argues for