As Amanda Knox said last night in L.A. to the Westside Bar Association, it's not as if the dynamics of wrongful convictions are not well known. They are - Saul Kassin's work on false confessions is one aspect of what is well known.
So for one last time, here's a link to a 2007 Canadian wrongful conviction study which highlighted the common themes in most, if not all of them. This study was done before anyone had heard of Mignini and the injustice in Perugia.
http://www.millerthomson.com/assets/files/article_attachments/Wrongful_Convictions_in_Canada.pdf
Briefly:
- multiple acts of misconduct by multiple authorities in "the system"
- conduct of the police
- conduct of prosecutors, judges, and forensic scientists
- conduct of defence lawyers
- tunnel vision surrounding an early theory
- mistaken eyewitness identification
- false confessions
- use of in-custody informers
- public pressure to convict
- intense media coverage
Remember this report is from 2007. The report which is at the link references Canadian Inquiries from 1989 to 2007 which are said to be some of the most comprehensive in the world, as well as the common themes found in those 18 years.
So, rather than reinventing the wheel in concert only with each high-profile wrongful conviction, the following are some of the (common) recommendations coming out of each individual, Canadian Royal Commission:
- police training include race relations
- that court services include on-call language interpreters
- undue reliance on forensic experts, when other more relevant forensics is missing
- examining and identifying (early) flawed and inadequate police investigations
- mandatory videotaping of all police interviews with suspects
- mandatory training for police and prosecutors on "tunnel vision"
- permanent storage of evidence and police notebooks
- independent review of claims of wrongful conviction
- inadequate disclosure of evidence by prosecutors
Anyway, no need to summarize the whole paper here.
The point being, it's not as if identifying wrongful convictions is rocket science. At some point all it takes is an authority in the system showing that the king has no clothes.