the collection and use of evidence from witnesses Flashcards

1
Q

how is an interrogation different to an interview?

A

because it is accusatory

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2
Q

how does an interrogation start?

A

the investigator starts by telling the suspect that there is no doubt as to their guilt. designed to increase arousal and anxiety.

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3
Q

what does the PACE require?

A

all evidence to be recorded in triplicate, to ensure it cannot be tampered with

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4
Q

what is inbau’s (1986) interrogation technique?

A

a nine-step process that is a direct confrontation, interrupts any denial, reinforces sincerity by staying close, and poses the alternative question- with both options being admissions of guilt

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5
Q

dangers of using interrogation

A

unethical; miss important details from the crime; induces false confession; leading questions alter memory; too much attention paid on one suspect; innocent until proven guilty

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6
Q

what four factors did gudjonnson (2003) suggest surround every confession?

A

the defendant; the arrest, mental/physical state; interrogation

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7
Q

false confessions and the defendant

A

false confessions are more likely from the very young, very old, low IQ, mentally ill

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8
Q

false confessions and the arrest

A

suddenly, violently, in the middle of the night/long periods of time are more likely to falsely confess

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9
Q

false confessions and mental/physical state

A

stressed, anxious, ill or intoxicated

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10
Q

false confessions and interrogation

A

coercive, biased/leading interview tactics can encourage vulnerable suspects to falsely confess

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11
Q

what can identify those likely to falsely confess?

A

scoring high on the gudjonnson suggestibility scale

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12
Q

example of false confessions

A

four of the birmingham six who confessed scored higher than those who protested their innocence

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13
Q

how does PACE (1984) prevent false confession?

A
  • interviews must be recorded and saved in triplicate
  • one sealed in front of suspect, police and solicits
  • reading of rights must take place
  • suspect has right to a solicitor
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14
Q

what is the cognitive interview?

A

based largely on loftus’ work on memory- designed to take account of well known cognitive functions and avoid leading the witness.
involves reinstating the context of the event and using a variety of retrieval methods.

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15
Q

what two principle assumptions does the cognitive interview rest on?

A

1) memory of an event is made up of an interconnected network
2) retrieval from memory will be more effective if the context surrounding the original events can be reinstated

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16
Q

what are the first basic of the cognitive interview?

A

1) report everything- free recall may enrich memory and increase accuracy

17
Q

what is the second basic of the cognitive interview?

A

2) recall in different temporal orders- may offer cues to trigger recall and prevent schemas from distorting the memory

18
Q

what is the third basic of the cognitive interview?

A

3) mental reinstatement of context- mentally take them back to the scene by asking about their senses and feelings at the time

19
Q

what is the fourth basic of the cognitive interview?

A

4) recall from a variety of different perspectives- by describing events as others might have seen it avoids the possibility of reconstructing their own memory of the event

20
Q

what is the enhanced cognitive interview?

A

a revision of the CI technique to include a framework, and recommends chatting about a neutral topic before the interview to help the witness relax- designed by fisher and geiselman

21
Q

evaluation of the CI and ECI

A
  • techniques are too time consuming to use fully in investigation- often not all stages are used
  • when used properly, it offers an established, thorough and effective method with a scientific basis in empirical research
  • there are a number of retrieval techniques that can be used separately when time is limited
22
Q

what did memon and higham’s study look at?

A

all lab research over the last 25 years; 57 articles across 65 experiments. all obtained via online databases and had to be from a peer reviewed journal.

23
Q

what did memon and higham review?

A

research into the cognitive interview and made suggestions and recommendations

24
Q

what did memon and higham find?

A

the cognitive reinstatement aspect seems most effective- although it could be that using the cognitive interview as a while has a synergising effect

25
Q

what good comparison did memon and higham recommend?

A
  • the guided memory interview would be a good comparison to test the effectiveness of cognitive reinstatement
  • the structured interview would allow comparison with the cognitive components of the CI
26
Q

what did memon and higham conclude about research?

A

research has been too simplistic in what constitutes memory, and training needs to be effective and trainers must be credible and respected

27
Q

how can interview techniques be applied in real life?

A

the UK police adapted ECI into the PEACE technique