Gathering human intelligence via repeated interviewing: further empirical tests of the Scharff technique

Research on investigative interviewing has only recently started to compare the efficacy of different techniques for gathering intelligence from human sources. So far the research has focused exclusively on sources interviewed once, thus overlooking that most sources are interviewed multiple times. The present study attempts to remedy this gap in the literature. Students (N?=?66) took on the role of semi-cooperative sources, holding incomplete information about an upcoming terrorist attack. The sources were informed that they would be interviewed at least once, and that additional interviews might follow. Half of the sources were interviewed on three occasions with the Scharff technique (consisting of five tactics), and the other half was interviewed on three occasions using the so-called direct approach (i.e. open-ended and specific questions). Collapsing the outcome over the three interviews, the Scharff technique resulted in significantly more new information compared to the direct approach. Furthermore, sources interviewed by the direct approach overestimated how much new information they had revealed, whereas the sources interviewed by the Scharff technique underestimated their contribution (although not significantly so). The current study advances previous research by further contextualizing the tests of the efficacy of human intelligence gathering techniques.     

The influence of personality on violent victimization – a study on police officers

The current study aims to examine the influence of police officer characteristics, civilian characteristics, and possible interactions between both on violent victimization of police officers. Based on literature distinguishing between ‘provocative’ and ‘submissive’ victims, focus is given on effects of police officers’ personality in terms of the five-factor model plus risk-taking. Patrol police officers (n?=?1813) from Lower Saxony, Germany, completed a paper-and-pencil survey including personality assessments as well as questions about their last three police encounters. Binary logistic multilevel regression analyses demonstrate that police officers with higher scores on neuroticism and openness to experience were more likely to be violently attacked. Furthermore, agreeableness reduced police officers’ risk of violent victimization, while risk-taking and neuroticism increased their risk when confronted with a violent civilian. The study indicates that personality and especially traits that are assumed to provoke potential perpetrators were linked with violent victimization. It further stresses the need to include perpetrator attributes in victim studies in order to identify relevant interaction effects between both parties.     

Job satisfaction: validating Dantzker’s four-factor model using structural equation modeling

The purpose of this study was to examine the validity of the four-factor structure from a job satisfaction instrument. Dantzker’s job satisfaction instrument was designed to capture information on four factors: general administration, extras, job, and equipment. Using data from police officers that are middle management (n?=?136), we performed confirmatory factor analysis via structural equation modeling to validate that the four factors are actually capturing job satisfaction. The results of the study show that the four-factor solution fit the model satisfactorily. All of the factor loadings were large expect for one. The results suggest that the four-factor solution has proper validity to use with middle manager police officers. Post hoc simulation analyses (n?=?1000 replications) show that no bias in the factor loadings or standard errors was present in this analysis, and the study had sufficient statistical power.     

Fading lies: applying the verifiability approach after a period of delay

ABSTRACT

We tested the utility of applying the Verifiability Approach (VA) to witness statements after a period of delay. The delay factor is important to consider because interviewees are often not interviewed directly after witnessing an event. A total of 64 liars partook in a mock crime and then lied about it during an interview, seven days later. Truth tellers (n?=?78) partook in activities of their own choosing and told the truth about it during their interview, seven days later. All participants were split into three groups, which provided three different verbal instructions relating to the interviewer’s aim to assess the statements for the inclusion of verifiable information: no information protocol (IP) (n?=?43), the standard-IP (n?=?46) and an enhanced-IP (n?=?53). In addition to the standard VA approach of analysing verifiable details, we further examined verifiable witness information and verifiable digital information and made a distinction between verifiable details and verifiable sources. We found that truth tellers reported more verifiable digital details and sources than liars.     

Job satisfaction among frontline police officers in China: the role of demographic,work-related,organizational and social factors

This study was intended to add to information about the underinvestigated policing studies in China. The possible impact of demographic characteristics, work-related variables, and organizational management and social variables on police job satisfaction was investigated. Data were collected through a self-report survey administered to a sample of sworn police officers training in a national police university in China (N?=?393). Results indicated that work-related characteristics associated with variety and stress, and organizational variables associated with professional development and peer cohesion were the most important predictors of job satisfaction in this sample of police officers.     

US police officers’ knowledge regarding behaviors indicative of deception: Implications for eradicating erroneous beliefs through training

Abstract

The current study surveyed a random sample of Texas law enforcement officers (n?=?109) about their knowledge regarding behaviors indicative of deception. The officers were not highly knowledgeable about this topic, overall performing at a chance level in assessing how various behavioral cues relate to deception. Confidence in one's skill was unrelated to accuracy, and officers who reported receiving the most training and utilizing these skills more often were more confident but no more accurate in their knowledge of the behaviors that typically betray deception. The authors compare these results to previous studies that have examined officers’ beliefs in other countries and discuss the implication of these results in terms of developing future training programs that may debunk the common misconceptions that officers possess.     

Applying the Verifiability Approach in an international airport setting

In the current study, we tested the utility of applying the Verifiability Approach (VA) within an international airport setting. The VA works on the notion that truth tellers provide more verifiable details than liars and has shown to be successful within other empirical deception detection scenarios. Three hundred and ninety-nine airside participants (those originating from Europe, Asia and African) were asked questions regarding their travel plans. We asked participants to either lie (n?=?195) or tell the truth (n?=?204) about their planned activities. The critical question required participants to provide information that would convince the investigator that they were telling the truth. We then transcribed and coded their responses for verifiable details; that is, details that could potentially be checked by an investigator. Overall, truth tellers provided significantly more verifiable details than liars. Furthermore, when taking their geographical origin into account, there was no interaction effect between veracity and region. Additionally, truth tellers provided a higher verifiable/total detail ratio than liars, which again showed no interaction effect between veracity and region. These findings support the suitability of the VA as a cross-cultural veracity tool and implications for its use as an additional security aid are discussed.     

Training in the Strategic Use of Evidence technique: Improving deception detection accuracy of American law enforcement officers

The Strategic Use of Evidence (SUE) approach is a framework for planning and executing suspect interviews with the aim of facilitating judgments of truth and deception. US law enforcement officers (N = 59) either received training in the SUE approach or did not. Each officer interviewed a mock suspect (N = 59) who had either committed a simulated security breach or had completed a benign task. The officers who received SUE training interviewed in line with the training: They questioned the suspect systematically, withheld the evidence and critical case information until after questioning, and relied on statement-evidence inconsistency to detect deceit. Consequently, SUE-trained interviewers achieved a higher deception detection accuracy rate (65%) compared to untrained interviewers (43%).     

Seeking or controlling the truth? An examination of courtroom questioning practices by Canadian lawyers*

ABSTRACT

The questioning practices of Canadian lawyers were examined. Courtroom examinations (N?=?91) were coded for the type of utterance, the assumed purpose of the utterance, and the length of utterance. Results showed that approximately one-fifth of all utterances were classified as productive for gathering reliable information (i.e. open-ended, probing); less than one percent of all utterances were open-ended. Direct examinations contained more closed yes/no, probing, and open-ended questions. Cross-examinations contained more leading and clarification questions, and opinions. Moreover, cross- (vs. direct) examinations contained more questions with a ‘challenging the witness’ purpose. The longest utterances were opinions, followed by multiple and forced-choice questions. The longest answers were in response to open-ended questions, followed by multiple and probing questions. Implications for the truth-seeking function of the judiciary are discussed.     

A Need for Training: Preparing Juvenile and Family Court Judges on Military‐Related Issues

This brief report presents a study undertaken to better understand the training needs of judicial officers related to military issues. A snowball sample of judicial officers and court‐affiliated stakeholders were asked to identify the most critical training topics regarding military issues in juvenile and family court, as well as rate the importance of 13 potential training topics. The highest rated training topics for judicial officers (N = 129) were the (1) Welfare of spouses and children, (2) Protocols to consider when selecting kinship care for children of deployed parents, (3) Mental and physical health consequences of military service and deployment, (4) Reporting standards regarding Intimate Partner Violence or Family Violence, as well as implications for civil case investigation, and (5) Education support for children of deployed parents. Findings suggest a desire in the field for specific training on a multitude of issues related to serving/veteran men and women, spouses, and dependents. Recommendations for such trainings are discussed.     

Training Police Investigators to Interview to Detect False Intentions

This study is the first to investigate police investigators’ adherence to, and the effectiveness of, a training program for detecting true and false intentions. Experienced police investigators (N = 53) were either trained or not trained in how to interview to discriminate between true and false intentions. All investigators interviewed mock suspects (N = 53), of which half lied and half told truth about their intentions. Both subjective and objective measures showed that the trained investigators interviewed in line with the training received. That is, a large proportion asked about the planning of the stated intentions. Noteworthy, none of untrained investigators reported to have posed such questions for strategic purposes. The trained investigators reached a higher detection accuracy level (65 %) than their untrained colleagues (55 %), however not significantly. Given that the investigators adhered to the training, this training package is a viable starting point for developing more effective training programs.     

Witness Interview Training: a Field Evaluation

The effect of a witness interviewing training program on interviewing performance in actual investigations was examined. Eighty interviews, conducted by police officers in one Canadian organization, were coded for the presence of 38 desirable practices. Results showed that, in general, trained interviewers outperformed their untrained counterparts. Specifically, there was a large improvement in engage and explain behaviors (d = 1.65), a moderate improvement in account behaviors (d = 0.54), and a large improvement in closure behaviors (d = 0.90). Trained interviewers also used more open-ended questions and fewer leading questions. The implications of the findings for transferring interviewing skills from the classroom to the field are discussed.     

Mental reinstatement of context with child witnesses: does it matter whether context is reinstated ‘out loud’?

Abstract

In this study we examined the impact of two types of mental reinstatement of context instructions in facilitating children's recall of a staged event across two stages of development. Specifically, a 2 × 3 factorial design was utilised incorporating two age groups (6- and 12-year-olds) and three interview conditions (standard recall, mental reinstatement where the child was instructed to reinstate the context ‘out loud’, and mental reinstatement without the explicit ‘out loud’ instruction). Overall, mental reinstatement instruction led to more correct and fewer incorrect responses than the standard recall instruction. The effect of mental reinstatement was similar across the age groups and irrespective of whether the child was asked to reinstate ‘out loud’. Beneficial effects of the technique, however, were only evident for cued-recall questions as opposed to free-narrative responses. The implications of these findings and directions for future research are discussed.     

Effects of Mental Strength Training for Police Officers: a Three-Wave Quasi-experimental Study

Police officers are frequently confronted with various stressors that may affect their mental health. Psychological resilience may protect against these effects. For this purpose, a Mental Strength Training (MST) was developed by the Dutch Police Academy aimed at psychological resilience enhancement. The present three-wave study examined efficacy of this training using a quasi-experimental study design among police officers (N ^Total ?=?305, n ^Experimenal ?=?138, n ^Comparison ?=?167). Additionally, we compared between officers in the experimental and comparison group recently confronted with a potentially traumatic event (N ^Total ?=?170, n ^Experimenal ?=?74, n ^Comparison ?=?96). Questionnaires on resilience (Mental Toughness Questionnaire-48 (MTQ-48) and Resilience Scale-nl (RS-nl)), mental health disturbances (Symptoms CheckList 90-R (SCL-90-R) and Self-Rating Inventory for PTSD (SRIP)), were administered pre-training, and about 3 and 9 months post-training. Mixed-effects models showed training effects on Interpersonal Confidence. Similar analyses among officers with recent potentially traumatic event experience showed significant training effects for the RS-nl subscale of Acceptance of Self and Life, MTQ-48 total score, and the MTQ-48 subscale of Interpersonal Confidence. However, all effects yielded small effect sizes according to Cohen’s d, and are therefore of limited practical relevance. Officer’s appraisal of training benefits on resilience enhancement was largely negative. We found no indications that 4-day training substantially improved officer’s psychological resilience or mental health.     

The Mr. Big technique on trial by jury

Mr. Big is a Canadian undercover police technique used to elicit confessions. Undercover officers befriend the suspect, and gradually draw them into a fictitious criminal organization. Upon meeting the boss of the organization, ‘Mr. Big’, the suspect is pressured to confess. When evidence from the sting operation, including the confession, is presented later in court, it may induce juror moral prejudice towards a defendant. We evaluated how situational and dispositional sting factors (crime task severity, financial incentive, and defendant intelligence) influence mock juror moral prejudice and decision-making in Mr. Big cases. Results from Experiment 1 (N?=?270) showed fewer guilty verdicts in the high incentive conditions. In Experiment 2 (N?=?1,666), high incentive and low defendant intelligence were related to fewer guilty verdicts, more favorable ratings of defendant character, and more skeptical evaluations of confession evidence. Additionally, there were differences between community and student participants on multiple outcomes.     

Assessing the Effectiveness of NICHD Protocol Training Focused on Episodic Memory Training and Rapport-Building: a Study of Korean Police Officers

The present study examined the effectiveness of 2-day training programs utilizing the NICHD Protocol, with a particular focus on the episodic memory training and rapport-building phases. Ninety-seven police officers were allocated to one of four training conditions (protocol only, protocol and rapport-building, protocol and memory training, protocol and other interview issues), and mock interviews were conducted both before and after the training. The results showed that the proportions of invitations and directive questions asked significantly increased after training, whereas the proportions of option-posing and suggestive questions decreased. Although the different training programs changed interviewing behavior similarly, college students interviewed by police officers who had additional training in rapport-building and episodic memory training were more satisfied with their interviewers than those who were interviewed by police officers in the other conditions.     

Truth,Lies, and Videotape: An Investigation of the Ability of Federal Parole Officers to Detect Deception

The ability of a group of Canadian federal parole officers to detect deception was investigated over the course of 2 days of lie detection training. On the first day of training, 32 officers judged the honesty of 12 (6 true, 6 fabricated) videotaped speakers describing personal experiences, half of which were judged before and half judged after training. On the second day, 5 weeks later, 20 of the original participants judged the honesty of another 12 videotapes (again, 6 pre- and 6 posttraining). To isolate factors relating to detection accuracy, three groups of undergraduate participants made judgments on the same 24 videotapes: (1) a feedback group, which received feedback on accuracy following each judgment, (2) a feedback + cue information group, which was given feedback and information on empirically based cues to deception, and (3) a control group, which did not receive feedback or cue information. Results indicated that at baseline all groups performed at or below chance levels. However, overall, all experimental groups (including the parole officers) became significantly better at detecting deception than the control group. By the final set of judgments, the parole officers were significantly more accurate (M = 76.7%) than their baseline performance (M = 40.4%) as well as significantly more accurate than the control group (M = 62.5%). The results indicate that detecting deceit is difficult, but training and feedback can enhance detection skills.     

Grooming child victims into sexual abuse: a psychometric analysis of survivors’ experiences

This study sought to examine the psychometric properties of the Grooming subscale of the Computer Assisted Maltreatment Inventory (CAMI) in a sample of adult survivors of child sexual abuse. There are currently no other research measures that examine grooming events as experienced by survivors, which underscores the importance of a reliable and valid way of gathering this information. Participants (n?=?295) were adult survivors of child sexual abuse who completed this anonymous study online. The sample was collected through the use of adult survivor of child sexual abuse websites, trauma blogs, and survivor group pages on Facebook. Exploratory Factor Analysis, Confirmatory Factor Analysis, and Cronbach’s Alpha were used to ascertain the reliability and validity of this subscale. These analyses suggest that the Grooming subscale of the CAMI is a reliable and valid measure. This measure is an important addition to the body of research instruments that measure adult survivor of child sexual abuse experiences, particularly since this is the only instrument that examines grooming from this perspective.     

The relationship between investigative interviewing experience and open-ended question usage

We present three studies examining the role of prior job experience in interviewing and interviewers' ability to learn open-ended questions during a training program. We predicted a negative relationship such that more experienced interviewers would perform worse after training than less experienced interviewers, and that (irrespective of baseline performance) the more experienced interviewers would improve the least during training. These predictions were made for two reasons. First, specific questions are commonly used in the workplace (i.e. open-ended questioning constitutes new learning). Second, experience in the use of specific questions potentially interferes with newly learned open-ended questions. Overall, our predictions were supported across different participant samples (including police officers specialized in child abuse investigation and social workers from the child protection area), time delays, and modes of training. The results highlight the need for investment in ongoing investigative interviewing training commencing early during professionals' careers, prior to the establishment of long-term habits in the use of specific questions.