Creating Suspects in Police Interviews1

In 3 studies, the idea was tested that an increase in a police officer's movements in an interview will lead to an increase in movements made by the suspect. This increase in movements may then be interpreted by the police officer as suspicious behavior. In Study 1, interviewees were interviewed by 1 male police officer who either made some movements or no movements at all. The movements made by the suspects were investigated. In Studies 2 and 3, police officers were asked to judge the credibility of interviewees who were interviewed by a lively or a nonlively interviewer. The results supported the process described.     

Countermeasures Against the Strategic Use of Evidence Technique: Effects on Suspects' Strategies

As the Strategic Use of Evidence (SUE) technique becomes more widely taught to practitioners, it is important to investigate possible countermeasures to the technique. It is possible that guilty suspects who are aware of the SUE technique will employ forthcoming verbal strategies to make themselves appear innocent. Mock suspects committed a richly detailed simulated transgression (or a benign analogue) and were interviewed about their activities. Prior to questioning, some suspects received information about SUE tactics the interviewer was likely to use. Guilty suspects who were informed about the SUE technique employed more verbally forthcoming strategies than their uninformed counterparts. Guilty suspects who were given SUE information also reported planning for the interview in different ways. However, guilty‐informed suspects did not become as forthcoming as innocent suspects overall. In sum, it appears that information about the SUE technique induces guilty suspects to alter their strategies, but only to a relatively small degree.Copyright © 2015 John Wiley & Sons, Ltd.     

Coping with stereotype threat: denial as an impression management strategy

Four experiments tested the hypothesis that people who are concerned with impression management cope with stereotype threat through denial. Consistent with this hypothesis, temporary employees threatened by a stereotype of incompetence (Study 1) and hostel-dwelling older adults (Study 2) were more likely to deny incompetence if they were high in impression management. African Americans (Study 3) showed a similar pattern of denying cognitive incompetence, which emerged primarily when they were interviewed by a White experimenter and had attended a predominantly Black high school. In Study 4, White students who expected to take an IQ test and were threatened by a stereotype of being less intelligent than Asians were more likely to deny that intelligence is important if they were high in impression management.     

Police practices and perceptions regarding juvenile interrogation and interrogative suggestibility

Recent media coverage has highlighted cases in which young suspects were wrongly convicted because they provided interrogation-induced false confessions. Although youth may be more highly suggestible and easily influenced by authority than adults, police are trained to use the same psychologically coercive and deceptive tactics with youth as with adults. This investigation is the first standard documentation of the reported interrogation practices of law enforcement and police beliefs about the reliability of these techniques and their knowledge of child development. Participants were 332 law enforcement officers who completed surveys about interrogation procedures and developmental issues pertaining to youth. Results indicated that, while police acknowledge some developmental differences between youth and adults, there were indications that (1) how police perceive youth in general and how they perceive and treat them in the interrogation context may be contradictory and (2) their general view is that youth can be dealt with in the same manner as adults.     

On the psychology of confessions: does innocence put innocents at risk?

The Central Park jogger case and other recent exonerations highlight the problem of wrongful convictions, 15% to 25% of which have contained confessions in evidence. Recent research suggests that actual innocence does not protect people across a sequence of pivotal decisions: (a) In preinterrogation interviews, investigators commit false-positive errors, presuming innocent suspects guilty; (b) naively believing in the transparency of their innocence, innocent suspects waive their rights; (c) despite or because of their denials, innocent suspects elicit highly confrontational interrogations; (d) certain commonly used techniques lead suspects to confess to crimes they did not commit; and (e) police and others cannot distinguish between uncorroborated true and false confessions. It appears that innocence puts innocents at risk, that consideration should be given to reforming current practices, and that a policy of videotaping interrogations is a necessary means of protection.     

Investigating true and false confessions within a novel experimental paradigm

The primary goal of the current study was to develop a novel experimental paradigm with which to study the influence of psychologically based interrogation techniques on the likelihood of true and false confessions. The paradigm involves guilty and innocent participants being accused of intentionally breaking an experimental rule, or "cheating." In the first demonstration of this paradigm, we explored the influence of two common police interrogation tactics: minimization and an explicit offer of leniency, or a "deal." Results indicated that guilty persons were more likely to confess than innocent persons, and that the use of minimization and the offer of a deal increased the rate of both true and false confessions. Police investigators are encouraged to avoid interrogation techniques that imply or directly promise leniency, as they appear to reduce the diagnostic value of any confession that is elicited.     

The flawed interview of a psychopathic killer: what went wrong?

The flawed interview of convicted killer Christopher Porco illustrates what occurs when a suspect's psychopathic traits are not considered in formulating an interview strategy. Specific areas of the dialogue between Christopher Porco and law enforcement demonstrates that traditional methods of interviewing may not produce a confession or valuable information when it comes to psychopathic suspects. Although the traditional goal of an interview is to obtain a confession or valuable information, law enforcement will have to display flexibility in the interview process by implementing alternative interview strategies and redefining what a successful interview is composed of when these suspects are unwilling to confess to their crimes. Failure to remain flexible, as displayed in the Christopher Porco case, which yielded neither a confession nor valuable information, can jeopardise the strength of a homicide case that ultimately may go to trial. Copyright © 2010 John Wiley & Sons, Ltd.     

影响被告人供述的因素及其对策的研究

以１９５名执法人员和１８５名服刑犯人为被试,采用问卷法研究了影响被告人供述的因素以及相应的对策建议。结果表明：（１）有１０种因素被认为对被告人未能形成供述动机有影响作用,有９种因素被认为对被告人形成如实供述动机有影响作用,其中,执法人员所认为的影响作用基本上都比服刑犯人所认为的要大,同时,双方具有各自的倾向性;（２）有１５种因素被认为对愿意供述的被告人未能如实供述可能存在影响作用,其中６种因素确实有一定的影响;（３）有９种对策被普遍认为对解决被告人不愿供述问题有效,有１０种对策被认为对解决愿意供述的被告人未能如实供述的问题有效,同时,执法人员和服刑犯人在关于对策有效性的评价上具有互补性。     

Are police officers more likely to kill African-American suspects?

In recent psychological research decisions by police officers to shoot criminal suspects are often assumed to be racially biased, and it is concluded that officers are more likely to shoot African-American suspects. This assumption was tested with national data on persons killed during legal interventions and with data bearing on the African-American proportion of criminal suspects law enforcement officers face. Analysis indicates that the African-American share of persons killed by law enforcement officers, while higher than the African-American percentage of the U.S. population, is lower than one would expect based on the estimated African-American proportion of suspects confronted in violent encounters or the African-American percentage of suspects who kill police officers.     

Another look at confirmatory strategies during a real interview

In two experiments, it is shown that interviewers bias to a larger extent their questions towards their hypothesis when they interact with an interviewee than when they only prepare questions for a future interview. Also more biased questions are asked at the beginning of the interview than at the end. This does not seem to be due to the certainty entertained by the interviewers about their hypothesis. More likely, it appears that biased questions have an adaptative value and that they smooth the interview. All in all, our subjects were not especially concerned with diagnosticity.     

Murderers' and sexual offenders' experiences of police interviews and their inclination to admit or deny crimes

This research concerns murderers' and sexual offenders' experiences of Swedish police interviews and their attitudes towards allegations of these serious crimes. The explorative study is based on a questionnaire answered by 83 men convicted of murder or sexual offences. Results show that when police officers interview murderers and sexual offenders, the individuals perceive attitudes that are characterized by either dominance or humanity. Logistic regression shows that police interviews marked by dominance are mainly associated with a higher proportion of denials, whereas an approach marked by humanity is associated with admissions. When suspects feel that they are respected and acknowledged, they probably gain more confidence and mental space, allowing them to admit criminal behaviour.     

Train the Trainers: A First Step towards a Science‐Based Cognitive Lie Detection Training Workshop Delivered by a Practitioner

A training workshop utilising recent research in cognitive lie detection was designed and evaluated. A unique future of the training was that a practitioner (retired police detective) instead of scientists (e.g. the training developers) introduced the techniques. To evaluate the training, 27 experienced police detectives each interviewed one mock suspect (a truth teller or liar) before training, and another group of 23 experienced police detectives interviewed one mock suspect (a truth teller or liar) after training. The police detectives were free to interview the mock suspect in any way they felt appropriate, but those who had received training were asked to try to incorporate (some of) the taught techniques in their interviews. The detectives made veracity judgements, and the interviews were transcribed and coded for the amount of detail elicited and the questions asked. Training had a modest effect on the ability to distinguish between truths and lies but resulted in a higher percentage of appropriate questions asked. Trainees did not implement the taught techniques to an equal extent, but when they did, the techniques enhanced the elicitation of information. The training study also revealed challenges, particularly difficulty in implementing the taught techniques into practice and asking the right questions to elicit differences in detail between truth tellers and liars. Copyright © 2015 John Wiley & Sons, Ltd.     

False Confessions: Causes, Consequences, and Implications for Reform

ABSTRACT— Despite the commonsense belief that people do not confess to crimes they did not commit, 20 to 25% of all DNA exonerations involve innocent prisoners who confessed. After distinguishing between voluntary, compliant, and internalized false confessions, this article suggests that a sequence of three processes is responsible for false confessions and their adverse consequences. First, police sometimes target innocent people for interrogation because of erroneous judgments of truth and deception. Second, innocent people sometimes confess as a function of certain interrogation tactics, dispositional suspect vulnerabilities, and the phenomenology of innocence. Third, jurors fail to discount even those confessions they see as coerced. At present, researchers are seeking ways to improve the accuracy of confession evidence and its evaluation in the courtroom.     

The Cognitive Interview and Lie Detection: a New Magnifying Glass for Sherlock Holmes?

The observation of serious deficiencies in the traditional police interview led Geiselman and colleagues to develop an alternative method of questioning. This method is known as the cognitive interview. The CI starts from the premise that the witness, victim or suspect wishes to cooperate. But, what happens if this is not the case? More seriously, what happens if he/she lies? The main aim of this study is to examine the differences between true and false statements, as a function of the interview technique employed (CI/STI). Participants were 73 students of the University of La Laguna. A 2×2 factorial design with the following variables was used: type of interview [traditional interview used in Spain by the Police (STI) and cognitive (CI)] and type of statement (true and false). The hypothesis was that the true and false accounts of witnesses would be qualitatively and quantitatively different independent of the type of interview used (STI/CI). Results confirmed the hypothesis. © 1997 by John Wiley & Sons, Ltd.     

The Miranda Warnings and the Deaf Suspect

Administration of the Miranda Warnings to deaf suspects poses many legal issues. If police officers, judges, attorneys and psychologists are unaware of these, evidence obtained as a consequence of deaf suspects waiving their Miranda Rights may be inadmissible in court. These issues include the importance of videotaping the police interview, the use of sign language interpreters, the determination of the deaf defendant's reading level and communication capacity, the limitations of lipreading, and other psycholinguistic factors. Recommendations are offered to aid in determining whether a deaf suspect is capable of understanding the Miranda Warnings and how these warnings should be administered.