A theft staged for 80 unsuspecting eyewitnesses was followed by a picture lineup that did or did not contain the thief. In an attempt to see if eyewitness confidence is tractable after the identification, half of the eyewitnesses who identified the thief (accurate witnesses) and half who identified an innocent suspect (inaccurate witnesses) were briefed by a "prosecutor" who suggested they rehe...

A theft was staged 70 times for pairs of eyewitnesses (N = 140) who then made a photo-lineup identification. Witnesses then received 1 of 9 types of information regarding the alleged identification decision of their co-witness. Witnesses told that their co-witness identified the same person whom they had identified showed an increase in the confidence they expressed to a confederate police offi...

This article argues that an iconic event in the history of helping research -- the story of the 38 witnesses who remained inactive during the murder of Kitty Genovese -- is not supported by the available evidence. Using archive material, the authors show that there is no evidence for the presence of 38 witnesses, or that witnesses observed the murder, or that witnesses remained inactive. Drawin...

A new generation of expert witnesses in sexual and reproductive health is needed, including those in nursing as well as medical roles. Being an expert witness is a significant commitment alongside clinical work. Nevertheless, the work is stimulating and rewarding. Training is essential before starting medicolegal work. In particular expert witnesses need to be able to apply appropriate legal te...

We present a stochastic Petri net model of a replicated file system in a distributed environment where replicated files reside on different hosts and a voting algorithm is used to maintain consistency. Witnesses, which simply record the status of the file but contain no data, may be used in addition to or in place of files to reduce overhead. We present a model sufficiently detailed to include ...