The National Association of Criminal Defense Lawyers (NACDL) recently released a report that is somewhat provocatively, but fairly, titled: The Trial Penalty: The Sixth Amendment Right to Trial on the Verge of Extinction and How to Save It. The report, available here, offers a succinct assessment of the legal and institutional pressures that coerce 97% of state and federal defendants into plea bargains.
From the Executive Summary:
[O]ver the last fifty years, trial by jury has declined at an ever-increasing rate to the point that this institution now occurs in less than 3% of state and federal criminal cases. Trial by jury has been replaced by a “system of [guilty] pleas”3 which diminishes, to the point of obscurity, the role that the Framers envisioned for jury trials as the primary protection for individual liberties and the principal mechanism for public participation in the criminal justice system.