Forensic Psychology Flashcards
What is crime
Any act that violates the law and is punished by the state
What factors influence our definition of crimes
History
Age
Culture
Mental state
Describe how culture influences crime
Criminal behaviour varies from country to country as a result of different laws in those countries
Ie U.K. Alcohol can be purchased from 18 in America 21
State 3 ways of measuring crime
Victim surveys
Official statistics
Offender surveys
What are official statistics
They are annual statistics on crime and the info is based on info that’s seen or reported to the police e
What are victim surveys
This is when a sample of people are asked to state which crimes may have been reported or not have been committed against them over a fixed period time
How are victims surveys conducted
A sample is selected from a list of addresses from the Royal Mail and it’s done randomly
Everyone is interviews using a fixed set of questions
What are offender surveys
This is when offenders are questioned with the aim to increase knowledge of crime behaviour and young people
Give one strength and one weakness of official statistics
Weakness: only a certain number of crimes get report d to the police for reasons like they believe it won’t be taken seriously, 42%
It means official stats only represent a small part of criminal activity due to the dark figure of crime
Strengths general trends in statistics tend to be in agreement meaning areas are used high crime rates can be targeted
Describe strengths of victim surveys
It provides potential info on the dark figure of unreported crime depends on honesty
They are more consistent than official statistics when making comparisons over a time period as official cary with changes in law
Describe limitations of victim surveys
The sampling is biased as only 75% of those concreted take part ie they have time,also the sample is done from those with a postal address
Victims surveys potentiall underestimate the actual crime,as the number of crimes reported from an indivisible is 5 meaning people could have more incidents that happen against them in a year which won’t get reported
Ie Farrell and pease in domestic abuse suggests that as a result of the cap as man 3 mill in cases haven’t been included in crime figures
State limitations of offender surveys
Lack of accuracy in answer we in these surveys people may underplay their involvement in crime social desirability
What is meant by offender profiling
It’s a method of working out the characterises of an offender by examining the characterises of the crime and crime
What is the top down approach
It’s designed to produce a profile of the most likely offender through analysis of the crime scene
State the six main stages of the top down approach
Profiling inputs
Descion process models
Crime assessment
Criminal profile
Crime assessment
Apprehension
What happens in profiling inputs first stage
Information is collected about the crime scene ie photographs,sketches
Background info on the victim is collected ie employment
Details of the crime itself such as weapon, autopsy report
What happens in decision process models
The data received is put into meaningful patterns
Ie the type of murder
Time factors where it occurred during night or day
Location where was the crime scene located
What is crime assessment third stage
The offender based in the evidence from the crime is classified as either organised or disorganised
State characteristics of both organised and disorganised criminals
Organised: high IQ
Socially competent
Murder was premeditated,lack of clues at crime scene
Happy harmonious relationship
Disorganised:low IQ
Crime is unplanned with victim selected randomly
Crime contains lots of clues
Likely to live alone
What happens in the criminal profile stage
A profile of the offender is constructed and it includes a hypothesis about their habits,likely behaviours
What happens in crime assessment stage 5
A written report is given to the police and people matching profile are evaluated
What happens in stage 6 apprehension
A suspect is arrears and each stage or the process is evaluated to check if the conclusions made are valid and legitimate
Give 4 evaluation points from the top down approach
The method is deemed useful,copson and schereer and Jarvis
Only applies to specific crimes
David canter -flawed classification
Alison based in outdated models of personality
Explain how research has shown the effectiveness of the top down approach
(Ao3
Cops on found 82% of 184 us police officers found the method useful and that 90 said they would use it again
Schereer and Jarvis stated that enables police officers to keep an open mind and that as a result it helps in prevent wrongful convoy
Shows how the technique has been applied to real life by the police and that it’s proving to be beneficial for them