How cognitive psychologists can improve crime scene forensic
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How cognitive psychologists can improve crime scene forensic
When a jury decides the fate of a person, they do so based on the evidence presented to them in the courtroom. Evidence obtained from forensic analysis, such as DNA analysis, is often interpreted as strong evidence by jurors.
This perception of forensic evidence is enhanced by popular TV shows like CSI: Crime Scene Investigation, where physical evidence is used to solve murders in a "whodunit" showdown between deductive cops and crafty criminals covering their tracks. All it takes is the right evidence to piece the story together.
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But recent research suggests that the reality of forensic analysis is that it can be subjective and fallible. For instance, forensic evidence can sometimes be ambiguous because of factors such as the presence of DNA on samples that originates from more than one person.
When forensic evidence is ambiguous, contextual information (such as knowledge of a confession) may influence how forensic examiners evaluate the evidence. This distortion in their evaluation is called contextual bias and has been stated to be a reason why miscarriages of justice occur.
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