Witnesses are encouraged to include every single detail of the event
Trivial memories are important and may trigger other memories of the event
2 - Mental reinstatement
The witness should enter the original event ‘in their mind’ and imagine the environment and their emotions
This can act as context-dependant forgetting
3 - Change the order
Events should also be recalled in different chronological order to the original sequence
Prevents people reporting their expectations of what happened, rather than the actual events
Also prevents dishonesty (Hard to produce an untruthful account when its reversed)
4 - Change Perspective
Recall the incidence from other peoples perspective
Disrupts the effect of expectations and schema on recall
The schema you have of a particular setting generates expectations of what would have happened
The enhanced cognitive interview adds further methods
Open ended questions
calming the witness
Minimising distraction
managing eye contact
getting the witness to speak slowly
Weaknesses
The cognitive interview is time consuming - the police believe the CI takes much longer than the regular police interviews - the police don’t have time (eg a serial killer may be on the lose)
The cognitive interview is expensive - The CI requires extensive training, which isn't affordable on the publics tax
Strengths
A meta analysis into the enhanced cognitive interview, cognitive interview and regular interviews
More correct information was found through the cognitive interview than regular interviews
However, there was also a 61% rise in incorrect info
Could it work well with all witnesses
Young children - not able to perspective change properly, may not be able to remember many details or change the order
Older witnesses - may not trust their memory, therefore may benefit from the cognitive interview