Photographic Lineups Research Articles

Appearances can be deceiving: how naturalistic changes to target appearance impact on lineup-based decision-making

ABSTRACT The present study examined the influence of appearance, procedure and position on identification decisions, post-decisional confidence ratings and estimates of discrimination and confidence-specific accuracy. Regarding appearance, the study examined the combined influence of three naturalistic changes that occur day-to-day (i.e. a reduction in cranial hair length, the removal of stubble, and a change of clothing), two of which have not been considered before in a lineup-decision context. Participants (N = 350) completed four experimental lineups which involved: viewing a target person, completing a brief distractor task, and making an identification decision and a post-decisional confidence rating from a photographic lineup. Participants were randomly allocated to complete simultaneous or sequential lineups, with appearance (no change, change), position (early, late) and target (present, absent) systematically varied across the four trials. Appearance affected all dependent measures and was particularly influential in target-present lineups. Naturalistic changes to target appearance reliably decreased correct identification rates, confidence in correct identifications, discrimination accuracy, and confidence-specific accuracy. Procedure and position, by contrast, had a more limited impact. Of concern for the criminal justice system, neither procedure nor position manipulations offset any reductions in lineup-decision accuracy when target appearance changed.

Variations in the encoding conditions can affect eyewitnesses' vulnerability to suggestive influence

AbstractThis experiment was designed to examine how viewing conditions could affect witnesses' vulnerability to suggestive influence. It was predicted that when the encoding conditions were stronger, accurate witnesses would be less likely to shift their decisions when prompted to reexamine the lineup, and that confirming feedback would effectively solidify influenced identifications. Participants (N = 411) watched a simulated‐crime from two different viewing distances and were asked to identify the culprit from a photographic lineup. After voicing their identification decisions, participants were prompted to reexamine the lineup. Half the participants then received confirming‐feedback for their decisions. Twelve‐minutes later, witnesses viewed the same lineup and were asked again to identify the culprit. As predicted, accurate witnesses were less likely to shift their identification decisions when prompted to reexamine the lineup in the close, but not the far viewing condition. Also, shifted identification decisions that were reinforced with confirming feedback were asserted with higher confidence.

Comparing witness performance in the field versus the lab: How real-world conditions affect eyewitness decision-making.

This field-simulation experiment was designed to compare eyewitness performance when conducting show ups and lineups under field versus laboratory conditions. We expected to replicate the findings from previous field-simulation experiments showing overconfidence in show up identifications made under field but not lab conditions, and further predicted that under field conditions, high-confidence identifications are more likely to be correct when using lineups compared with show ups. It was also expected that field conditions would lead witnesses to lower their criterion for choosing with show ups, but we did not know how field conditions would affect lineup decision-making. Participants (N = 719) witnessed the theft of a laptop computer and were asked to identify a suspect from a live show up, a photographic show up, or a photographic lineup administered under either field or lab conditions. In the field condition, uniformed officers functioned as experimenters and participants were immersed in what they were led to believe was an actual police investigation. In the lab condition, participants were debriefed before the identification procedure that the theft was staged for research purposes and that their identifications were being made as part of a study on eyewitness memory. As predicted, witnesses were overconfident in their show up identifications made under field but not lab conditions, and high-confidence identifications were more likely to be correct when using lineups compared with show ups. Also as expected, field conditions led witnesses to lower their criterion for choosing with show ups regardless of culprit presence. However, the opposite was true for lineups, such that field conditions resulted in witnesses raising their criterion for choosing. Field conditions had a very different effect on witness performance when conducting show ups compared with lineups. When witnesses were led to believe that their identification would result in the arrest and prosecution of the suspect, they became more liberal in their decision-making when show ups were used but more conservative when lineups were employed. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Lineup Instruction Verbiage's Effect on the Accuracy of Eyewitness Identifications: Michigan's Procedure

ABSTRACT Our study examined the effects of biased and unbiased lineup instructions verbiage on the accuracy of eyewitness identification in a suspect-absent photographic lineup. Seventy subjects were randomly assigned to either a biased instruction condition or an unbiased instruction condition where they watched a mocked crime video, solved word-search puzzles for five minutes, completed a suspect-absent photographic lineup, and then completed an online post-witness experience feedback questionnaire. The unbiased condition utilized photographic lineup instructions from the State Bar of Michigan's Eyewitness Identification Task Force recommended policy writing guide. For the biased condition, the instructions alluded to subjects that the suspect was present. Subjects in the unbiased condition answered correctly 45.7% of the time compared to 28.6% of those in the biased condition. Chi-square test for independence indicated no significant association between the lineup instructions verbiage and the accuracy of eyewitness identification rates. Binomial logistic regression found that the confidence level in the identification choice made, ease of making an identification, decision making time, ability to recognize the lineup appeinstructions, and group condition were not significant predictors of subjects correctly identifying the suspect. Our results would suggest that the verbiage of the lineup instructions does not increase accuracy of eyewitness identifications.

Eyewitness descriptions without memory: The (f)utility of describing faces

SummaryEyewitness descriptions provide critical information for the police and other agencies to use during investigations. While researchers have typically considered the impact of memory, little consideration has been given to the utility of facial descriptions themselves, without the additional memory demands. In Experiment 1, participants described face images to their partners, who were then required to select these faces from photographic lineups. Performance was error‐prone when the same image appeared in the lineup (73% correct), and decreased further when a different image of the same face was presented (22% correct). We found some evidence to suggest this was due, in part, to difficulties with recognizing that two different images depicted the same person. In Experiment 2, we demonstrated that descriptions of the same face given by different people showed only moderate agreement. Taken together, these results highlight the problematic nature of facial descriptions, even without memory, and their limited utility.

Eyewitness identification procedures for multiple perpetrator crimes: a survey of police in Sweden, Belgium, and the Netherlands

ABSTRACTA considerable proportion of crimes involve multiple perpetrators. Yet, little is known about how police officers construct, administer, and record eyewitness identification procedures for multiple suspects. An online survey of law enforcement agents in Sweden, Belgium, and the Netherlands (N = 51) was conducted to obtain an initial understanding of police perceptions of prevalence and characteristics of multiple perpetrator crimes, and to examine identification procedure practices given the little to no guidance provided for police. Practice converged when it came to the use of sequential, photographic lineups, but diverged between and within countries on whether or not suspects of multiple perpetrator crimes should be placed in separate lineups. Results specifically highlight contextual cuing as one critical area for future research in identification for multiple perpetrator crimes (i.e. placing multiple suspects in the same lineup or asking eyewitnesses to look for a specific suspect).

Does anyone else look familiar? Influencing identification decisions by asking witnesses to re-examine the lineup.

Two experiments were conducted to see if asking witnesses to take another look at the lineup after they voiced their identification decisions would alter their choices, and if confirming feedback could then be used to solidify the selections they shifted to. Participants watched a simulated crime and were asked to identify the culprit from a photographic lineup. After voicing their identification decisions, participants were prompted to re-examine the lineup. Half of the participants then received confirming feedback for their decisions, regardless of whether they shifted to a new picture or not. Later on, a different experimenter escorted participants to a second room and administered the same lineup again. In Experiment 1 (N = 432), biased instructions were used to encourage choosing, and when participants were prompted to re-examine the lineup, 70% changed their identification decisions and selected a different picture. When that new selection was reinforced with feedback and participants were given a second opportunity to identify the culprit at a later time, 72% selected the picture they shifted to as the culprit. Participants who made their decisions more quickly were less likely to shift, but accuracy did not predict shifting. This general pattern of findings was replicated using unbiased instructions in Experiment 2 (N = 237). Results suggest that prompting witnesses to re-examine the lineup can often lead witnesses to change their identification decisions, and when the altered choice is reinforced, they will often stay with that influenced decision over time, asserting it with a high degree of confidence. (PsycINFO Database Record

Improving children's performance on photographic line-ups: Do the physical properties of a ‘wildcard’ make a difference?

Purpose Children's performance on target-absent photographic line-ups may improve when they have the option of pointing to a wildcard – a photo of a silhouetted figure with a question mark superimposed. We investigated whether the wildcard's physical properties influence its success. Methods Children (7–11 years, N = 237) briefly saw one of two confederates during a staged event; 1–2 days later, they completed either a target-present or target-absent line-up task. Within each condition, children either saw a wildcard with a plausible silhouette (i.e., consistent with the silhouette of the target), a wildcard with an implausible silhouette (i.e., inconsistent with the silhouette of the target), a wildcard with no silhouette (i.e., a question mark only), or no wildcard. Results Wildcard condition did not influence children's target-present performance. On target-absent line-ups only the plausible wildcard increased children's accuracy above that of children in the no wildcard control condition. Conclusions The wildcard may only be successful to the extent that its silhouette is a plausible representation of the target. Possible explanations for this outcome and implications for using wildcards in investigative practice are discussed.

Stress, Interviewer Support, and Children's Eyewitness Identification Accuracy

Few studies have investigated how stress affects eyewitness identification capabilities across development, and no studies have investigated whether retrieval context in conjunction with stress affects accuracy. In this study, one hundred fifty-nine 7- to 8- and 12- to 14-year-olds completed a high- or low-stress laboratory protocol during which they interacted with a confederate. Two weeks later, they attempted to identify the confederate in a photographic lineup. The lineup administrator behaved in either a supportive or a nonsupportive manner. Participants who experienced the high-stress event and were questioned by a supportive interviewer were most accurate in rejecting target-absent lineups. Results have implications for debates about effects of stress on eyewitness recall, how best to elicit accurate identifications in children, and developmental changes in episodic mnemonic processes.

The Performance of Eyewitnesses with Intellectual Disabilities on Photographic Identification Line-ups

Despite the large number of people with intellectual disabilities (ID) and the fact they are more likely to be victims and witnesses of crime, only two published studies have investigated their performance on identification line-up parades. In the present study we examined the identification performance of adults with and without ID on both a perpetrator-present and a perpetrator-absent photographic line-up. In addition, we investigated factors that could explain any potential difficulties with identification performance, such as face recognition performance (as measured by a standardised test), eyewitness confidence, understanding of the purpose of a line-up, and memory for non-biased line-up instructions. In comparison with typical adults, participants with ID demonstrated poorer performance across both perpetrator-present and perpetrator-absent photographic line-ups, yet were more confident in the accuracy of their responses. In addition they had poorer face recognition performance, were less likely to understand the purpose of the line-up, and were less likely to remember the non-biased line-up instructions. This pattern of difficulties is discussed in relation to the development of future research and interventions.

The emotional eyewitness: The effects of emotion on specific aspects of eyewitness recall and recognition performance.

The present set of experiments aimed to investigate the effects of negative emotion on specific aspects of eyewitness recall and recognition performance. The experience of emotion was manipulated between subjects, with participants either viewing a crime scenario (a mugging) or a neutral scenario (a conversation). Eyewitness recall was categorized into descriptions of the perpetrator, critical incident, victim, and environmental details. The completeness and accuracy of eyewitness recall across categories of detail were measured in Experiment 1. A significant main effect of negative emotion was found for the completeness of recall. Furthermore, a significant main effect of the completeness of eyewitness statements was found, but not for their accuracy. However, these main effects were qualified by a significant interaction between emotion and category of detail recalled. Specifically, emotional participants provided a more complete description of the perpetrator than neutral participants; however, they were less able than their neutral counterparts to describe what the perpetrator did to the victim. In light of these findings, Experiment 2 investigated whether enhanced completeness of perpetrator descriptions during recall translated into an enhanced ability to recognize the perpetrator from a photographic lineup by emotional compared with neutral participants. Results from Experiment 2 suggest that while emotional participants again provide a more complete description of the perpetrator, they are less able than their neutral counterparts to recognize the perpetrator from a photographic lineup. Results are discussed in terms of a retrieval motivation hypothesis of negative emotional experience and the possible consequences for eyewitness testimony.

Selecting the Suspect: An Eye-Tracking Comparison of Viewing of Same-Race vs. Cross-Race Photographs in Eyewitness Identification

An eye-tracking study was conducted to examine cross-race recognition deficit (CRRD) or own-race bias in cross-racial eyewitness identification. The eye-tracking data revealed differences between Anglo eyewitness viewing and African American eyewitness viewing of the same-race photo lineups. Variations in scan path complexity and sequential patterns suggest a “mixed strategy” for scanning the photographic lineups was more common than an “absolute” or “relative” strategy.

Exploring the effects of age and delay on children's person identifications: Verbal descriptions, lineup performance, and the influence of wildcards

We explored the effects of age and retention interval on several measures of children's person identification ability: verbal descriptions, lineup performance, and the success of a 'wildcard'--a photo of a silhouetted figure with a large question mark superimposed--in reducing children's tendency to choose from target-absent lineups. Children aged 5-7 years (N= 101) and 8-11 years (N= 109) were briefly exposed to an experimental confederate during a staged event. Either 1-2 days or 2 weeks later, children described the confederate and were then presented with either a target-present or -absent lineup. Within each group, approximately half of the children were presented with a wildcard and half were not. Target-present lineup performance improved as age increased. Compared to control children, children in the wildcard condition were more likely to correctly reject the target-absent lineup, and less likely to identify the innocent suspect. The wildcard did not influence children's target-present lineup accuracy, nor did delay exert an influence on any of our measures of lineup performance. These findings extend our knowledge of children's person identifications, as well as providing further support for the use of wildcards in photographic lineups.

Don't it make my brown eyes blue: Co-witness misinformation about a target's appearance can impair target-absent line-up performance

Misinformation from another witness has been shown to impair eyewitness reports, but little is known about how it may influence eyewitness identification. In Experiment 1, adult pairs comprising one participant and one experimental confederate viewed a video clip of a staged theft. Half of the participants were then misinformed by the confederate that the thief's accomplice had blue eyes (in fact, they were brown). Next, individual participants described the accomplice and completed a target-absent photographic line-up task comprising blue-eyed members. Misinformed participants were several times more likely than controls to describe the accomplice as having blue eyes, and twice as likely to identify someone from the line-up. In Experiment 2, when line-up members’ eye colour was digitally altered from blue to brown, the line-up effect disappeared, suggesting that the increase in identifications in Experiment 1 was not a generalised increase in willingness to choose from the line-up. In Experiment 3, we discounted the possibility that discussion alone could account for the line-up misinformation effect, by subjecting all participants to co-witness discussion.

The wildcard: A simple technique for improving children's target‐absent lineup performance

AbstractWe attempted to increase children's willingness to reject target‐absent lineups by making identification and rejection response procedures highly comparable. Eight‐ to eleven‐year‐old children (N = 159) were briefly exposed to a confederate in the context of a staged event, and 24–48 hours later completed either a target‐present or target‐absent photographic lineup task. Within each lineup condition, children were either told to tell the experimenter if the target was not present (control condition), or provided with an additional photograph of a silhouetted figure with a large question mark superimposed (wildcard condition), and asked to point to this photograph if the target was not present. The wildcard increased children's accuracy on the target‐absent lineup without affecting their target‐present performance. In fact, performance was increased to a point at which target‐absent and target‐present accuracy did not differ significantly. These findings offer a promising, easily‐implemented intervention for reducing children's eyewitness identification errors. Copyright © 2008 John Wiley & Sons, Ltd.

The effects of local and global processing orientation on eyewitness identification performance

Recent work has demonstrated that performance on a simultaneous target-present photographic line-up can be enhanced by prior global processing orientation, and hindered by prior local processing orientation induced by processing Navon letter stimuli. A series of studies explore the generality of this processing bias effect using either videotaped scenarios or live interactions. Five experiments demonstrate that these effects are seen across a range of test stimuli, test formats, and test instructions. These data inform the processes engaged in by witnesses when making line-up identifications and indicate that it may be possible to improve the accuracy of witnesses making such judgements.

Failure of Anthropometry as a Facial Identification Technique Using High‐Quality Photographs*

Anthropometry can be used in certain circumstances to facilitate comparison of a photograph of a suspect with that of the potential offender from surveillance footage. Experimental research was conducted to determine whether anthropometry has a place in forensic practice in confirming the identity of a suspect from a surveillance video. We examined an existing database of photographic lineups, where one video image was compared against 10 photographs, which has previously been used in psychological research. Target (1) and test (10) photos were of high quality, although taken with a different camera. The anthropometric landmarks of right and left ectocanthions, nasion, and stomion were chosen, and proportions and angle values between these landmarks were measured to compare target with test photos. Results indicate that these measurements failed to accurately identify targets. There was also no indication that any of the landmarks made a better comparison than another. It was concluded that, for these landmarks, this method does not generate the consistent results necessary for use as evidence in a court of law.

Memory for centrally attended changing objects in an incidental real-world change detection paradigm.

People often have difficulty detecting visual changes in scenes, a phenomenon referred to as 'change blindness'. Although change blindness is usually observed in pictures of objects that are not the focus of attention, it also occurs for attended objects in the real world. Here, we further explore the finding that many participants fail to detect the unexpected substitution of one conversation partner for another. We show that change blindness for a conversation partner occurs in a variety of situations. Furthermore, when tested with a photographic lineup following the change, participants who noticed the substitution showed better memory for both pre- and post-change experimenters than participants who did not detect the change. We conclude that change blindness in this case is associated with relatively ineffective or inaccessible representations of previously attended objects, and we contrast these results with others indicating that change blindness arises from a failure to compare the original and changed object.

Eyewitness identification in actual criminal cases: An archival analysis.

This study analyzed 271 actual police cases in order to address several prevalent issues in the eyewitness literature. Suspect identification (SI) rates were obtained for 289 photographic lineups, 258 field showups, 58 live lineups, and 66 lineup identifications preceded by earlier identifications. SI rates were assessed for 3 levels of extrinsic evidence: no extrinsic evidence, evidence of minimal probative value, and evidence of substantial probative value. The SI rates for the photographic lineups were assessed as a function of delay, same vs. cross-race conditions, witness type, and weapon presence. SI rates declined significantly over time; SI rates were significantly greater for the same-race condition. SI rates were much greater for field showups than photographic lineups, 76% vs. 48%. The SI rates for the field showups did not vary as a function of eyewitness conditions. The relation between confidence and suspect/foil identifications for the live lineups was significant and moderately high. The utility of archival identification studies for eyewitness testimony research is discussed.

The Biasing Effect of the Photographic Showup Compared to the Lineup on Later Lineup Identification

Of interest in this study were the effects of the preliminary showup and lineup eyewitness identification methods on later identifications. After watching a video enactment of a car theft, 204 participants answered a questionnaire pertaining to the crime scene. Immediately following this, subjects participated in one of three identification conditions: (a) a showup (n = 65), a single photo of an innocent suspect, (b) a preliminary lineup (n = 56), six photos of suspects including the innocent suspect, or (c) a control (n = 83), no preliminary identification required. One week later, all the participants returned and viewed either a perpetrator-present or a perpetrator-absent photographic lineup. The major finding was that in the perpetrator-absent lineup more false alarms for the innocent suspect were made by showup participants than by either the lineup or control participants. Results were discussed in terms of the biasing properties of the showup procedure and how the memory for the perpetrator is affected.