http://www.csmonitor.com/2006/0424/p01s04-usju.html
Amanda Paulson and Sara Miller Llana
"A police lineup is often the moment of truth in a criminal investigation. It's also, say many experts, highly fallible.
Of the 175 convictions overturned by DNA evidence, 75 percent were convicted largely because of eyewitness testimony that turned out to be mistaken. Those exonerations have energized efforts to reform the way police conduct lineups and get eyewitness identifications. A growing number of counties and states are adopting measures to improve accuracy and limit influences on witness memory.
Now, though, a first-of-its-kind study from Illinois is casting doubt on a reform called 'sequential double-blind.' "