48 group exonerations involving at least 37,351 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.
Total records: 48
| Group Name | Description | 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 | Contributing Factors |
|---|---|---|---|---|---|---|---|---|---|---|
| Alabama 2022 | Misconduct by Brookside Police Department | DP | 22 | 0 | 2019 | 2021 | 2022 | 2022 | OF, WH, NW | Official misconduct, Perjury or false accusation |
| California 1999 (1) | Rampart scandal in Los Angeles Police Department | VF | 171 | 50 | 1992 | 1998 | 1999 | 2001 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| California 1999 (2) | Misconduct by officers in LAPD's Central Division | DP | 17 | 0 | 1997 | 1998 | 1999 | 2001 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| California 2000 | Misconduct by members of Oakland Police Department known as "The Riders" | DP | 75 | 0 | Unknown | 2000 | 2000 | 2001 | OF, NW, DIS | Official misconduct, Perjury or false accusation |
| California 2016 | Impeachment evidence from Pittsburg Police Department | NF | 15 | 4 | 2013 | 2015 | 2016 | 2016 | OF, WH, NW, DIS | Official misconduct |
| California 2020 | Evidence-control problems at the Orange County Sheriff's Department | VF | 53 | 0 | 2015 | 2018 | 2020 | 2020 | OF, WH, NW, DIS | Official misconduct |
| Florida 2018 (1) | Misconduct tied to Jackson County sheriff's deputy | DP | 88 | 1 | 2017 | 2018 | 2018 | 2018 | OF, WH, NW, DIS | False or Misleading Forensic Evidence, Official misconduct, Perjury or false accusation |
| Florida 2018 (2) | Misconduct tied to Biscayne Park Police Department | VF | 31 | 2 | 2011 | 2015 | 2018 | 2021 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Florida 2019 | Exonerations tied to misconduct by Tampa police officers | DP | 12 | 0 | 2018 | 2019 | 2019 | 2020 | OF, NW, DIS | Official misconduct |
| Georgia 2019 | Exonerations tied to misconduct by Glynn County sheriff's deputies | DP | 9 | 0 | 2018 | 2019 | 2019 | 2019 | OF, WH, NW, DIS | Official misconduct |
| Illinois 2016 (1) | Exonerations in Chicago tied to police misconduct by Sgt. Ronald Watts | DP | 188 | 188 | 2003 | 2011 | 2016 | 2024 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| 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, WH, NW, WT, DIS | Official misconduct, Perjury or false accusation |
| Illinois 2025 | DuPage County THC Tests | TO | 18 | 0 | 2018 | 2023 | 2025 | 2025 | FA | False or Misleading Forensic Evidence |
| Kentucky 2002 | Misconduct by Louisville Metro Police | DP | 7 | 0 | 1998 | 2001 | 2002 | 2002 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Louisiana 2018 | Misconduct by sheriff's deputies and disclosure violations in Iberia Parish, Louisiana | DP | 19 | 1 | 2009 | 2015 | 2018 | 2018 | OF, NW, PJ, DIS | Official misconduct |
| Maryland 2017 | Gun Trace Task Force in Baltimore, Maryland | VF | 760 | 3 | 2009 | 2017 | 2017 | 2024 | PR, OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Massachusetts 2017 | Massachusetts drug lab scandal including perjury, dry-labbing and falsified data by Annie Dookhan | DP | 19000 | 0 | 2003 | 2012 | 2013 | 2017 | FA, WH, NW, PJ, DIS | False or Misleading Forensic Evidence, Official misconduct, Perjury or false accusation |
| Massachusetts 2018 | Massachusetts drug lab scandal with theft and post-conviction prosecutorial misconduct | DP | 13100 | 0 | Unknown | Unknown | 2018 | 2019 | PR, FA, WH, NW, FR | False or Misleading Forensic Evidence, Official misconduct |
| Michigan 2008 | Police misconduct by drug squad members in Benton Harbor | DP | 65 | 5 | 2006 | 2007 | 2008 | 2011 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Michigan 2020 | Intoximeter calibration problems | TO | 11 | 0 | 2019 | 2019 | 2020 | 2020 | FA, WH, DIS | False or Misleading Forensic Evidence, Official misconduct |
| Minnesota 2018 | Exonerations tied to search-warrant misconduct in Hennipin County | DP | 32 | 0 | 2017 | 2018 | 2018 | 2018 | OF, WH, NW, PJ | Official misconduct, Perjury or false accusation |
| 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, OF, WH, NW, PJ, DIS | False or Misleading Forensic Evidence, Official misconduct, Perjury or false accusation |
| New Jersey 2009 | Police misconduct in Camden, N.J. including planting drugs and perjury | DP | 70 | 24 | Unknown | 2009 | 2009 | 2010 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| New York 1994 | Misconduct by NYPD officers in the so-called "Dirty 30" | DP | 98 | 1 | 1991 | Unknown | 1994 | 1996 | PR, OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| New York 2015 | Yonkers Police Department | DP | 18 | 1 | 2011 | 2014 | 2015 | 2024 | OF, PJ, DIS | Official misconduct, Perjury or false accusation |
| New York 2021 (1) | Misconduct tied to former NYPD Det. Joseph Franco | DP | 520 | 3 | 2004 | 2018 | 2018 | 2023 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| New York 2021 (2) | Misconduct tied to NYPD officers in Queens, New York | NF | 68 | 0 | 2007 | 2016 | 2021 | 2022 | OF, WH, DIS | Official misconduct |
| New York 2021 (3) | Vacations tied to misconduct of former NYPD Detective Oscar Sandino | DP | 49 | 0 | 2007 | 2008 | 2021 | 2022 | OF, WH, DIS | Official misconduct |
| New York 2022 | Exonerations tied to convictions of NYPD officers | DP | 378 | 0 | 2007 | 2007 | 2022 | 2022 | OF, DIS | Official misconduct |
| New York 2023 | Mount Vernon Police Department | DP | 27 | 0 | 2017 | 2017 | 2023 | 2024 | OF, WH, NW, WT | Mistaken Witness ID, Official misconduct, Perjury or false accusation |
| 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, WH, NW, DIS | Official misconduct, Perjury or false accusation |
| Ohio 2007 | Exonerations tied to misconduct by DEA agent and informant in Mansfield, Ohio | DP | 19 | 1 | 2006 | 2006 | 2007 | 2011 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Ohio 2016 | East Cleveland police misconduct, including theft and falsified search warrants | NF | 43 | 0 | 2011 | 2015 | 2016 | 2019 | OF, NW, WT, DIS | Official misconduct |
| Oklahoma 2009 | Police misconduct including perjury, witness tampering and falsified search warrants in Tulsa, Oklahoma | DP | 30 | 4 | 2005 | 2010 | 2009 | 2013 | OF, WH, NW, WT, PJ, DIS | Official misconduct, Perjury or false accusation |
| Oregon 2023 | Record-keeping problems at the Oregon DMV | NF | 70 | 5 | 2004 | 2022 | 2023 | 2023 | Inadequate legal defense | |
| Pennsylvania 1995 | Wide-ranging misconduct originating in the 39th Precinct | DP | 230 | 0 | 1987 | 1991 | 1995 | 1997 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Pennsylvania 2013 | Police misconduct including theft, falsified records and perjury in Philadelphia | DP | 1100 | 1 | Unknown | Unknown | 2013 | 2020 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Pennsylvania 2015 | Police misconduct tied to perjury and falsified records in Philadelphia | DP | 250 | 0 | Unknown | Unknown | 2015 | 2021 | PR, OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Pennsylvania 2018 | Exonerations in Philadelphia tied to misconduct of former officer Reginald Graham | DP | 44 | 0 | 2005 | Unknown | 2018 | 2020 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Texas 2003 | Misconduct by an undercover drug officer in Tulia, Texas | DP | 35 | 35 | 1999 | 2000 | 2003 | 2003 | PR, OF, WH, NW, KP, WT, PJ, FR, DIS | Inadequate legal defense, Official misconduct, Perjury or false accusation |
| Texas 2013 | Forensic misconduct at Texas regional crime laboratory | DP | 26 | 0 | 2006 | 2012 | 2013 | 2020 | FA, NW, DIS | False or Misleading Forensic Evidence, Official misconduct |
| Texas 2020 | Exonerations tied to misconduct by Houston police officer Gerald Goines | DP | 38 | 37 | 2007 | 2019 | 2020 | 2025 | OF, WH, NW, WT, PJ, DIS | Official misconduct, Perjury or false accusation |
| Vermont 1977 | Vermont drug arrests | DP | 71 | 0 | 1974 | 1974 | 1977 | 1977 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Virginia 2015 | Misconduct tied to falsified search warrants by a police officer in Richmond,Virginia | DP | 15 | 0 | 2009 | 2012 | 2015 | 2016 | OF, WH, NW, PJ, DIS | Official misconduct, Perjury or false accusation |
| Washington 2007 | Exonerations tied to riot at Fort Lawton, Washington, in 1944 | VF | 28 | 0 | 1944 | 1944 | 2007 | 2007 | PR, WH | Official misconduct, Perjury or false accusation |