Comparing simultaneous and sequential line-up identification accuracy for a multiple perpetrator crime

Eyewitness identification is being researched for many years prior. However, research on eyewitness identifiaction was mostly conducted with crimes that involved only one perpetrator. For this reason, the present thesis focuses on eyewitness identification for a multiple perpetrator crime. The literature review summarises current knowledge regarding each aspect of recognition and tries to bring insight into the problem of recognition for multiple perpetrator crimes. For the empirical part of this thesis, an experiment was conducted, which aimed to compare simultaneous and sequential line-up identification accuracy. The experiment was changed from live to on-line enviroment due to the pandemic situation. The experiment was conducted on 151 young adult participants. Participants viewed a mock crime video recording involving a perpetrator and his accomplice. Participants were then randomly assigned two simultaneous or sequential line-ups and a target-present or target-absent condition. A week after viewing the video recording, each participant tried to identify the perpetrator and the accomplice in the assigned condition. Results indicated no statistically significant difference between simultaneous and sequential line-up identification. Discussion tries to explain possible influence of changing the..