1. Association of Chief Police Officers of England, Wales and Northern Ireland 2003 National Working Practices in Facial Imaging. http://www.acpo.police.uk//asp/policies/Data/garvinfacialimagingguidelines.doc
2. Eyewitness identification of children: Effects of absolute judgments, nonverbal response options, and event encoding.;Beal;Law and Human Behavior,1995
3. Beaudry , J. L. Boyce , M. A. Dupuis , P. R. Lindsay , R. C. L. 2005 An assessment of the multiple-Choice, sequential, large lineup.
4. The biasing influence of a police showup: Does the observation of a single suspect taint later identification?;Behrman;Perceptual and Motor Skills,1994
5. The damaging effectof confirming feedback on the relation between eyewitness certainty and identification accuracy.;Bradfield;Journal of Applied Psychology,2002