REPORT EVERYTHING: The
witness is encouraged to
report every detail of the
event, even information that
may seem irrelevant or
unimportant.
REINSTATE THE CONTEXT: The witness
is asked to imagine all aspects of the
crime scene, such as what the weather
was like, the time of day and how they
felt during the event. This is hoped to
help aid recall by using the context
cues to trigger further information.
REVERSE THE ORDER: The witness describes
what they saw in a different chronological
order, for example from the end to the
beginning, or starting at a midpoint of the
event. Evidence suggests that witnesses recall
more accurate information in this way rather
than in chronological order where recall may
be influenced by expectations of what they
thought had occurred.
CHANGE PERSPECTIVE:
The witness is asked to
recall the event from
someone else's
perspective.
The enhanced cognitive interview pays
more attention to aspects of the interaction
between interviewer and interviewee, such
as maintaining eye contact, reducing
distractions, asking open-ended questions
and getting the witness to speak slowly
rather than rushing through their account.
A strength is that there is evidence to suggest that the cognitive interview
is more effective than standard interviewing techniques. Geiselman et al
showed participants a film of a violent crime and then interviewed them
using either the cognitive interview, hypnosis or a standard interview.
The number of correctly recalled information was highest for the
cognitive interview. This suggests it is the superior method of recall
compared to other methods.
The cognitive interview may also lead to an increase in the recall of
inaccurate recall. Kohnken et al recorded an 81% increase in correct
information using the cognitive interview techniques, but this was offset
by a 61% increase in incorrect information, compared with standard
interview techniques. This suggests the real strength of cognitive
interviews is that more information is produced, but it may not be fully
accurate.
Research has shown which combinations of techniques are most
effective. Milne and Bull observed that any of the individual elements
of cognitive interview techniques are more effective in eliciting
accurate information than standard interview techniques. However,
the researchers noted that a combination of report everything and
context reinstatement were the most successful. This is a strength as
it is widely acknowledged that the cognitive interview is time
consuming so the police can used a shortened version in some
instances and still get accurate results.
Ethical interview
It has been concluded that many false
confessions and miscarriages of justice
were a result of police using unethical
techniques during questioning (this
would be police interviewing people
accused of perpetrating a crime rather
than witnesses of a crime).
It was found that police would use
techniques like making threats, false
promises and using physical force to
extract confessions. Now there is more
emphasis on 'ethical' interviews which
aims to teach officers to keep a more
open mind and act less aggressively
towards suspects.
The ethical interview has been shown to produce higher success rates.
Holmberg and Christianson found that interviews that were
characterised by intimidation and dominance on the part of the police
interviewer were associated with denials. Interviews that were marked
with respect and a positive attitude were most associated with
confessions. Therefore, the ethical interview may result in more
cooperative interviewees.
However, some people remain wary of the ethical
interview. Gudjonsson argues that some ethical
interview techniques are naive, and that the 'social
skills' approach to questioning should not entirely
replace more persuasive methods.
The PEACE model of ethical interviewing
The PEACE model was a collaboration
between law enforcement agencies and
psychologist in England and Wales. It is
based on the idea that suspects are
more likely to cooperate with police, and
therefore give a true confession, if they
feel relaxed, secure and not threatened.
The interviews follow five principles: preparation and
planning (identifying key objectives of the interview),
engage and explain (active listening to promote
rapport), account (use open-ended questions to elicit
information), closure (giving the suspect a chance to ask
questions), evaluate (reflect on the interviewer's
performance). All interviews following this model are
recorded in order to ensure the guidelines are properly
being followed.