Paper 3 - Criminal 3 - Collection and use of evidence from witness and suspects Flashcards
what is the difference between an interview and an interrogation
an interview aims to psychologically manipulate a suspect into making a confession and are non accusatory following a question and answer format.
Interrogations are accusatory, coercive and aim to discourage the suspect from talking unless they are willing to confess
Explain the background research done by Fisher
Tested the cognitive interview in the field using interview with real witnesses conducted by 16 police detectives from the robbery division of Florida. 7 of them were trained in the CI technique. The interviews were recorded and analysed by a team at the university of california who were blind to the conditions. Fisher found that 63% more information was obtained by the detectives trained in CI than the untrained. They concluded that CI techniques do produce an increase in information that could help police solve crimes.
What is the Reid technique - the nine steps of interrogation
- the suspect is isolated in a small, bare, soundproof room. The interrogator confronts the suspect with a strong assertion of guilt, accumpanied by evidence
- The interrogator urges truth telling and minimised the seriousness of the event.
- the interrogator interupts any denial efforts
- the interrogator aims to overcome the suspects moral, factual and emotional objections.
- if the suspect respond to pressure with passive withdrawl, he must regain the suspects attention
- this is done by showing sympathy and understanding
- two guilty interpretations are presented, one more acceptable.
- if the suspect accepts the lesser crime, the interrogator seeks full confession of the crime
- this is converted into a full writtern confession that will prove credible in court.
Why can interrogations lead to false confessions
confirmation bias - interrogators interpret the behaviour of the suspect in a way that confirms their expectations .
willingness to comply - some suspects are more vulnerable to manipulation so are more likely to please others by confessing
psychological disorders- people are more suseptible to making false confessions due to distorted memories and perceptions
youth - children are more compliant and not focused on long term consequences so are more likely to confess to escape the stressful interrogation
what 2 studies allowed for the development of the cognitive interview
loftus and palmer
grant et al
what are the 4 components of the cognitive interview
context reinstatement - the witness is asked to recreate the context of the crime by forming an image that may include smells, sounds, sights and objects
report everything - the witness is asked to recall everything they can
change order - witness is encouraged to recall events in a different order
change perspective - the witness is asked to recall the scene from the viewpoint of a victim or criminal or other witnesses.
what type of study is Memon and Higham’s research ?
an article that reviews the cognitive interview
what are the aims of Memon an Higham’s review
aimed to make comments on the theoretical and methodological issues to be considered in cognitive interview research and the practical considerations relating to the use of cognitive interview in the field.
What was Memon et al’s own research they conducted
interviewing college students using one of the three cognitive techniques: context reinstatement, changing order and changing perspective.
Control group was asked to ‘try harder’
They found no significant differences across the 4 groups
This shows that there is no single component of the cogntive interview that is more affective than another.
How did Memon et al replicate the research on children
using children aged 5-9 years old
The researcher recognised that younger children had difficulty in using the cognitivr techniques and this may have reduced effectiveness.
what was founf about context reinstatement
research wih adults found that context reinstatement provides most recall information and is the single most effective components of the CI (Milne)
what was concluded about the standard interview as a comparison to CI
refers to the technique typically used by the police. there area number of undesirable characteristics associated with the standrad interview such as rapid fire questions and frequent interruptions.
Memon and Higham recommended against using the standard interview as a comparison group to evaluate the efficiency of CI because it is so different from the CI and does not provide an appripriate control
what was concluded about the guided memory interview as a comparison for the CI
draws upon principles of contextual reinstatement as does the CI and by encouraging the witness to recall different contexts, it guides their memory. The GMI may be a reasonal comparison for determining whether CI efects can be attributed to context reinstatement alone of whether a combination of cognitive techniques are responsible for the effects.
Memon and Higham suggested a more appropriate control would be a procedure that achieves good rapport with the witness without the use of any special memory tecniques
what were the conclusions for structured interview as a comparison for the CI
structured interviewers build rapport with the witness to ptovide an opportunity for narrative descriptions of a crime and to provide time for interviewees to respond. It is non interruptive, confidence building and uses open questions. Many of these aspects are also present in the CI. however they use different cognitive techniques.
Memon and Higham believe that with appropraite training both CI and SI interviewers can be effective. However because the sole differences between the use of cognitive techniques in CI, the SI provides a reasonable good control for determining the role of CI technques
what are Memon and Higham’s conclusions for measures of memory
Majority of research measures memory performance as the percentage of correct statements, however, this does not consider the amount and nature of the unreported information. Lab studies show that people report more information than they ,ight in a standard interview, so it may be that the CI is changing the interviewees understanding of what the interviewer wants.