Transcript Slide 1

The Interrogation and False
Confession Link: Beyond
Common Knowledge?
Presented at:
The UC Irvine
Undergraduate Research Symposium
By:
Jaclyn Appleby
May 13, 2006
Interrogation’s Evolution:
Third degree to confidence game
The Advent of Psychological Interrogation
Psychological Interrogation
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Repeatedly accusing the suspect
of a crime
Repeatedly attacking the suspect’s
alibi
Repeatedly interrupting the
suspect’s denials
The lie detector test
Exaggerating/lying about
evidence
Providing moral
justifications/face saving
alternatives
The Myth of Psychological
Interrogation:
Innocent people do not confess…
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Anecdotal evidence suggests that the
general public believes that the use of
psychology is not sufficiently coercive to
elicit a false confession.
It is highly counter intuitive to believe that
someone would confess to a crime they did
not commit outside of the bounds of
physical coercion, as doing so is in such
obvious violation of self-interest.
False Confessions Do Occur…
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Archival analyses identify false confession
cases
Leo and Ofshe (1998) identified 60
 Drizin and Leo (2004) identified 125
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Researchers have produced false confessions
in the laboratory
Kassin and Kiechel (1996)
 Russano, Meissner, Narchet, and Kassin (2005)
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…and they are damning evidence
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The mere presence of a confession drastically
increases the likelihood of conviction (Kassin &
Sukel, 1997) .
Confession evidence returns higher conviction rates
than either eyewitness testimony or character
testimony (Kassin & Neumann, 1997).
Studies have estimated that a false confessor faces a
78-85% risk of being wrongfully convicted if the
case is not dismissed prior to trial (Leo & Ofshe,
1998; Drizin & Leo, 2004).
How do we protect the wrongfully
accused from their false confession?
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Improved police training and education on the
phenomenon of false confessions
Mandatory electronic recording of interrogations
and confessions to provide an objective record
Changing the law to require confessions to meet a
standard of reliability prior to admission
Expert witness testimony to educate
judge and jury on the coerciveness of
police interrogation and the possibility
of the elicitation of false confessions
Expert Witness Admissibility
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The Federal Rules of
Evidence provide a standard
for courts to allow
“scientific, technical, or
other specialized knowledge
[when it] assists the trier of
fact to understand evidence
or to determine a fact in
issue” (Fed. R. Evid. 702).
In order to assist the trier of
fact, the knowledge that the
expert witness brings to the
case must be beyond that of
the average person.
What does the average person hold
as common knowledge?
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We do not know…
There has never been a published survey of
public perceptions of the coerciveness of
interrogation techniques and their ability to
elicit true and false confessions.
The current study seeks to fill this empirical
gap and determine what the average person,
as a potential juror, believes in relationship
to the coerciveness of interrogation and the
elicitation of confessions.
Central Questions
Does the general public acknowledge the
coerciveness of psychological interrogation?
Does the general public believe that psychological
interrogation tactics can elicit false confessions?
Participants
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Surveys distributed to 268 UCI undergraduates
enrolled in an introductory criminology class
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Jury eligible population
Proximity to researchers
Demographics
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Gender
36%
male
female
64%
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Age
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Victimization
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Mean age 19.78
19.6% had been victim of serious crime
Death Penalty Support
33%
46%
21%
Support
Do Not Support
Unsure
Survey Measures
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Perceived coerciveness of interrogation techniques
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Perceived likelihood of interrogation techniques to
elicit true confessions and false confessions
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Rate the degree to which you believe that each tactic is
“coercive” (i.e., removes an individual’s perception of
their freedom to make a meaningful choice) during a
police interrogation; 1= not at all coercive, 5= extremely
coercive
Rate the likelihood that each of the following tactics
would elicit a true confession from the suspect during
the interrogation; 1= not at all likely, 5= very likely
Subtle indicators
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Importance that police have a confession to solve a case
Estimated time needed to elicit a confession
Coerciveness
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With the exception of giving a suspect a lie detector
test, each of the techniques was rated as coercive
(>3).
Lying to the suspect is seen as particularly coercive
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The lie detector’s coerciveness rating increased by 163%
when the clause “and falsely telling them the results show
they are lying” is added (4.24).
5
4
3
2
giving suspect lie
detector test
falsely telling them
results show they're
lying
1
0
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Each technique utilizing a lie about evidence
(surveillance, DNA, fingerprint) received coerciveness
ratings exceeding 4.0.
Coerciveness
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Positive Coercion Bias
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Implicit or explicit promises of leniency were
viewed as less coercive than implicit or explicit
threats of harm.
5
4
3
Implicit
Explicit
2
1
0
Promises of
leniency
Threats of harm
Likelihood of eliciting confessions
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With the exception of direct threat of physical
violence and beating the subject, interrogation
techniques were rated as significantly* more likely
to elicit true than false confessions.
The smallest variations in significant likelihoods
were seen for implicit (t=3.598) or explicit threats
(t=4.578) of physical harm.
4
3
True Confessions
False
Confessions
2
Implicit
Threats of
Harm
Explicit
Threats of
Harm
*Significance p<.001
Likelihood of eliciting confessions
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Of the remaining techniques, the ones that were rated
as most coercive (i.e. lying about lie detector
results/evidence) were rated as unlikely to cause a
false confession (<3).
5
4
3
coerciveness
likelihood of true confession
likelihood of false confession
2
1
0
lying about lie
false
detector
surveillence
evidence
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false DNA
evidence
false
fingerprint
evidence
Overall, people believe that interrogation techniques,
though coercive work to elicit true confessions and do
not elicit false confessions with any frequency.
Subtle Indicators
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Rated confessions as
less important to
solving a case than both
DNA and eyewitness
testimony.
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Mock-jurors have
demonstrated that
confessions lead to
convictions more
frequently than
eyewitness testimony.
Subtle Indicators
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Mean estimate of time needed to elicit a confession
was 7.88 hours, nearly five times the average
interrogation time as reported by police
investigators (Leo et al, forthcoming).
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As interrogation duration increases, the likelihood of
eliciting a false confession also increases.
FALSE
CONFESSIONS
Summary
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While it appears on the face of the issue that the
average person has sophisticated knowledge on
the coerciveness of interrogation techniques, they
lack knowledge about the links between
interrogation and confession.
Though preliminary, this is the first demonstration
that the average person does not understand the
link between coercive interrogation and false
confessions, thus the belief in the myth of
psychological interrogation has received
preliminary empirical support.
Beyond Common Knowledge?
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It appears that people understand that
interrogation is coercive, so an expert
witness explaining that interrogation
techniques are coercive would not be
necessary to educate the jury.
An expert talking about how coercive
interrogation tactics can lead to a false
confession would be beneficial to a jury and
could help to serve as a safeguard for the
wrongfully accused.
Acknowledgements
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Thank you to:
Dr. Richard Leo
 Dr. Jodi Quas
 Dr. Valerie Jenness
 Undergraduate Research Opportunities
Program
 Research participants
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For further information
Please direct correspondence to:
Jaclyn N. Appleby
Department of Criminology, Law, and Society
University of California, Irvine
[email protected]