Scientists develop new tool to 'freeze' crime scene memories / University of Portsmouth, 25 April 2007
http://www.port.ac.uk/aboutus/newsandevents/frontpagenews/title,63936,en.html
"The tool - a self-administered interview applied by witnesses at crime scenes - combats natural memory decay by using the latest research in cognitive psychology techniques. It 'freezes' images and details of crime scenes and perpetrators in the minds of witnesses, particularly small and seemingly insignificant details that provide major leads for detectives that turn out to be crucial in solving cases."