The Technical Working Group for Eyewitness Evidence (TWGEYEE), a multidisciplinary group of content-area experts from across the United States and Canada, was created by the National Institute of Justice (NIJ) in 1998 to develop recommended procedures for law enforcement use in investigations involving eyewitness evidence. These individuals, led by a Planning Panel composed of distinguished law enforcement, legal, and research professionals, authored the 1999 NIJ Research Report, Eyewitness Evidence: A Guide for Law Enforcement.

The TWGEYEE Training Teams were formed in early 2000 as subgroups of TWGEYEE to develop the materials found in this Trainer?s Manual. Two teams were formed—one to develop a lesson plan and accompanying materials for eyewitness interviewing procedures and another to develop a lesson plan and accompanying materials for identification procedures. Leading law enforcement and research members of the TWGEYEE Planning Panel were designated as team chairs who selected additional team members from the TWGEYEE membership base. These team members, listed below, worked together over a 1-year period to author the Trainer?s Manual.

Members of TWGEYEE reviewed the materials contained in this manual and provided valuable input during the preliminary development of the training criteria on which the lesson plans in this manual are built. These members are listed alphabetically below: