47 group exonerations involving at least 37,332 defendants

The Groups Registry focuses on groups of defendants tied together by a common pattern of systematic official misconduct in the investigation and prosecution of these cases that undermined confidence in the defendants' convictions.

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Group Name Common Name Crime Number of Defendants in Group Number of Defendants in Individual Registry Earliest Conviction Year Most Recent Conviction Year First Exoneration Year Most Recent Exoneration Year Official Misconduct Tags
Alabama 2022 Misconduct by Brookside Police Department DP 22 0 2019 2021 2022 2022 OF
California 1999 (1) Rampart scandal in Los Angeles Police Department VF 171 48 1992 1998 1999 2001 OF
California 1999 (2) Misconduct by officers in LAPD's Central Division DP 17 0 1997 1998 1999 2001 OF
California 2000 Misconduct by members of Oakland Police Department known as "The Riders" DP 75 0 Unknown 2000 2000 2001 OF
California 2016 Impeachment evidence from Pittsburg Police Department NF 15 4 2013 2015 2016 2016 OF
California 2020 Evidence-control problems at the Orange County Sheriff's Department VF 53 0 2015 2018 2020 2020 OF
Florida 2018 (1) Misconduct tied to Jackson County sheriff's deputy DP 88 1 2017 2018 2018 2018 OF
Florida 2018 (2) Misconduct tied to Biscayne Park Police Department VF 31 2 2011 2015 2018 2021 OF
Florida 2019 Exonerations tied to misconduct by Tampa police officers DP 12 0 2018 2019 2019 2020 OF
Georgia 2019 Exonerations tied to misconduct by Glynn County sheriff's deputies DP 9 0 2018 2019 2019 2019 OF
Illinois 2016 (1) Exonerations in Chicago tied to police misconduct by Sgt. Ronald Watts DP 188 188 2003 2011 2016 2024 OF
Illinois 2016 (2) Illinois Weapon-Possession Dismissals WO 197 1 1990 2013 2016 2025
Illinois 2019 Exonerations in Chicago tied to misconduct by Officers Elizondo and Salgado DP 8 4 2015 2018 2021 2023 OF
Kentucky 2002 Misconduct by Louisville Metro Police DP 7 0 1998 2001 2002 2002 OF
Louisiana 2018 Misconduct by sheriff's deputies and disclosure violations in Iberia Parish, Louisiana DP 19 1 2009 2015 2018 2018 OF
Maryland 2017 Gun Trace Task Force in Baltimore, Maryland VF 760 3 2009 2017 2017 2024 PR
Massachusetts 2017 Massachusetts drug lab scandal including perjury, dry-labbing and falsified data by Annie Dookhan DP 19000 0 2003 2012 2013 2017 FA
Massachusetts 2018 Massachusetts drug lab scandal with theft and post-conviction prosecutorial misconduct DP 13100 0 2018 2019 PR
Michigan 2008 Police misconduct by drug squad members in Benton Harbor DP 65 5 2006 2007 2008 2011 OF
Michigan 2020 Intoximeter calibration problems TO 11 0 2019 2019 2020 2020 FA
Minnesota 2018 Exonerations tied to search-warrant misconduct in Hennipin County DP 32 0 2017 2018 2018 2018 OF
Minnesota 2019 Dismissals involving undisclosed exculpatory evidence in Carlton County VF 7 1 2017 2018 2019 2019
New Jersey 1992 Misconduct tied to officer in Oaklyn Police Department TO 166 0 1989 1991 1992 1995 PR
New Jersey 2009 Police misconduct in Camden, N.J. including planting drugs and perjury DP 70 24 Unknown 2009 2009 2010 OF
New York 1994 Misconduct by NYPD officers in the so-called "Dirty 30" DP 98 1 1991 Unknown 1994 1996 PR
New York 2015 Yonkers Police Department DP 18 1 2011 2014 2015 2024 OF
New York 2021 (1) Misconduct tied to former NYPD Det. Joseph Franco DP 520 3 2004 2018 2018 2023 OF
New York 2021 (2) Misconduct tied to NYPD officers in Queens, New York NF 68 0 2007 2016 2021 2022 OF
New York 2021 (3) Vacations tied to misconduct of former NYPD Detective Oscar Sandino DP 49 0 2007 2008 2021 2022 OF
New York 2022 Exonerations tied to convictions of NYPD officers DP 378 0 2007 2007 2022 2022 OF
New York 2023 Mount Vernon Police Department DP 27 0 2017 2017 2023 2024 OF
New York 2024 Vacations tied to misconduct of former NYPD Officer James Donovan NM 46 0 2004 2011 2024 2024
North Carolina 2020 Raleigh Police Misconduct DP 7 2 2019 2020 2020 2022 OF
Ohio 2007 Exonerations tied to misconduct by DEA agent and informant in Mansfield, Ohio DP 19 1 2006 2006 2007 2011 OF
Ohio 2016 East Cleveland police misconduct, including theft and falsified search warrants NF 43 0 2011 2015 2016 2019 OF
Oklahoma 2009 Police misconduct including perjury, witness tampering and falsified search warrants in Tulsa, Oklahoma DP 30 4 2005 2010 2009 2013 OF
Oregon 2023 Record-keeping problems at the Oregon DMV NF 70 5 2004 2022 2023 2023
Pennsylvania 1995 Wide-ranging misconduct originating in the 39th Precinct DP 230 0 1987 1991 1995 1997 OF
Pennsylvania 2013 Police misconduct including theft, falsified records and perjury in Philadelphia DP 1100 1 Unknown Unknown 2013 2020 OF
Pennsylvania 2015 Police misconduct tied to perjury and falsified records in Philadelphia DP 250 0 Unknown Unknown 2015 2021 PR
Pennsylvania 2018 Exonerations in Philadelphia tied to misconduct of former officer Reginald Graham DP 44 0 2005 Unknown 2018 2020 OF
Texas 2003 Misconduct by an undercover drug officer in Tulia, Texas DP 35 35 1999 2000 2003 2003 PR
Texas 2013 Forensic misconduct at Texas regional crime laboratory DP 26 0 2006 2012 2013 2020 FA
Texas 2020 Exonerations tied to misconduct by Houston police officer Gerald Goines DP 37 36 2007 2019 2020 2025 OF
Vermont 1977 Vermont drug arrests DP 71 0 1974 1974 1977 1977 OF
Virginia 2015 Misconduct tied to falsified search warrants by a police officer in Richmond,Virginia DP 15 0 2009 2012 2015 2016 OF
Washington 2007 Exonerations tied to riot at Fort Lawton, Washington, in 1944 VF 28 0 2007 2007 PR