This article discusses research which shows that eyewitness' confidence in an identification when they first make it is reasonably predictive of whether the ide

This article discusses research which shows that eyewitness' confidence in an identification when they first make it is reasonably predictive of whether the identified suspect is guilty, but confidence later at trial is not. Given how structured the pick-person-from-lineup ritual is, it would be trivially easy to record a witness' reactions and level of initial confidence. If the US criminal justice system cared at all about truth, it would be doing this and would have been doing it decades ago. But they don't care. This is one more facet of an extensive pattern of corruption, including dropping the number of trials-per-arrest to near zero and faking an entire field of forensic science (http://www.slate.com/articles/news_and_politics/jurisprudence/2015/04/fbi_s_flawed_forensics_expert_testimony_hair_analysis_bite_marks_fingerprints.html http://www.slate.com/articles/news_and_politics/jurisprudenc...).