Which studies would that be?
Innocence Project (Cardozo School of Law in New York)
Professor John Donohue of Yale University’s School of Law study on Ct. Death penalty cases.
A Broken System:
Error Rates in Capital Cases, 1973-1995
James S. Liebman
http://www2.law.columbia.edu/instructionalservices/liebman/
For decades, for every 8 death row inmates executed, 1 innocent man on death row was executed, and one innocent man on death row was exonerated before death.
That is not justice, and as states are cutting back on budgets for public defenders in this recession, miscarriage of justice is getting worse in some states again.
Pres. G.W.Bush for all his faults, did sign a bill during his five year “what’s a veto pen look like?” phase, that requires all death row inmates to have DNA evidence tested against DNA samples.