Otgaar Henry, de Ruiter Corine, Howe Mark L, Hoetmer Lisanne, van Reekum Patricia
Faculty of Psychology and Neuroscience, Maastricht University, the Netherlands.
City University of London, UK.
Psychiatr Psychol Law. 2016 Oct 3;24(3):365-378. doi: 10.1080/13218719.2016.1230924. eCollection 2017.
Expert witnesses can play a major role in legal cases concerning the reliability of statements. Abuse cases frequently contain only the memories of eyewitnesses/victims without the presence of physical evidence. Here, it is of the utmost importance that expert witnesses use scientific evidence for their expert opinion. In this case report, a case is described in which 20 children reported being sexually abused by the same teachers at their elementary school. The investigative steps that were taken by the police and school authorities are reviewed, including how they probably affected memory. In order to provide a sound expert opinion regarding the reliability of these statements, three recommendations are proposed. To reduce the effect of confirmation bias and increase objectivity, it is argued that expert witnesses' reports should contain alternative scenarios, be checked by another expert, and focus on the origin and context of the first statement.
专家证人在涉及陈述可靠性的法律案件中可发挥重要作用。虐待案件通常仅包含目击者/受害者的记忆,而没有实物证据。在此,专家证人将科学证据用于其专家意见极为重要。在本病例报告中,描述了一个案例,其中20名儿童报告在其小学被同一名教师性虐待。回顾了警方和学校当局采取的调查步骤,包括这些步骤可能如何影响记忆。为了就这些陈述的可靠性提供合理的专家意见,提出了三项建议。为了减少确认偏差的影响并提高客观性,有人认为专家证人的报告应包含其他可能情况,由另一位专家进行核查,并关注第一份陈述的来源和背景。