The Reliability of Eyewitness Testimony Across the Lifespan

Eyewitness accounts of crimes are a mainstay of the criminal justice system worldwide. Courts of law usually regard the accounts of eyewitnesses to be among the most credible forms of evidence presented in a court of law. However, psychological research over several decades has revealed that eyewitness testimonies are among the most fragile forms of evidence. The vulnerability of eyewitness testimony is rooted in memory theories such as Bartlett’s theory of reconstructive memory, Information Processing Theory, and the Source Monitoring Framework. The vulnerability of eyewitness testimony has been demonstrated through the study of various characteristics of the perpetrators of the crimes, such as the effect of the race of the perpetrator upon the eyewitness’s ability to recognise him or her, and the effect of the presence of a weapon upon the eyewitness’s ability to focus upon the perpetrator. Other factors that have been shown to affect the credibility of eyewitness accounts include forgetting and retaining information over time, the emotions felt as a result of the witnessed crime, and the misinformation effect. Furthermore, the credibility of eyewitness accounts also differs according to the age of the eyewitnesses. Finally, cases such as Ronald Cotton demonstrate the consequences of these vulnerabilities. Despite the amount of research on eyewitness testimony in the Western world, research on these topics in India remains limited, even though eyewitness testimony carries significant weight in Indian courts of law. Therefore, a review of psychological research on eyewitness testimony can help reveal the need for eyewitness protocols in India’s courts of law, as well as indicate areas for future research.