Boston Police Commissioner Michael Cox is currently named in lawsuits by two senior officers who say he demoted them in retaliation, faces a credibility challenge arising from the Karen Read murder case, has drawn a formal rebuke from the city’s civilian police oversight board, and is the subject of a congressional inquiry into the department’s immigration enforcement practices. Each matter is active, and most have moved forward in 2025 or 2026.
Who Michael Cox Is
Cox is the 44th commissioner of the Boston Police Department, appointed by Mayor Michelle Wu on August 15, 2022. He joined the BPD in 1989. On January 25, 1995, while working plainclothes with the Anti-Gang Violence Unit, Cox was chasing a homicide suspect in Dorchester when fellow officers mistook him for a suspect and beat him; other officers then filed false reports claiming he had slipped on ice. He sued, a 1998 jury found against several officers, and the city settled remaining claims in 1999 for nearly $1 million.1Boston University. Boston Police Commissioner Michael Cox That history frames much of the current scrutiny of his leadership, because the controversies now attached to his name turn on how he handles misconduct, retaliation, and oversight from the other side of the badge.
The Eddings Whistleblower Lawsuit
Deputy Superintendent Marcus Eddings sued Cox in Suffolk Superior Court on January 12, 2026, alleging he was demoted for refusing to bury evidence of fraud in the BPD’s paid-detail program. Eddings says his investigation found wrongdoing by 43 officers across more than 693 instances, and he identified 45 more officers who warranted internal-affairs scrutiny.2Universal Hub. BPD Superintendent Charges He Was Demoted After He Uncovered Fraud
According to the complaint, Cox told Eddings that pursuing the cases would give the department another “black eye” and that Cox “did not want to mess up his legacy.” An unnamed official allegedly said the department could not realistically fire 15 to 25 officers. Cox demoted Eddings from superintendent to deputy superintendent on January 20, 2024.2Universal Hub. BPD Superintendent Charges He Was Demoted After He Uncovered Fraud
The suit charges violations of the state whistleblower statute and alleges “actual malice” and “personal hostility.” Eddings is seeking damages for pain and suffering, emotional distress, reputational harm, and lost earnings. Cox and the city have until May 11, 2026, to respond.3Boston Globe. Marcus Eddings Lawsuit Michael Cox Paid Detail Overtime Corruption
The Chrispin Federal Retaliation Suit
Deputy Superintendent Eddy Chrispin, a 25-year BPD veteran, was sworn in as a commissioner on the Massachusetts Peace Officer Standards and Training Commission in May 2024, appointed by the state attorney general. Cox told him the role conflicted with his command position. Chrispin refused to resign from the POST Commission, citing clearances from the attorney general’s office and the state ethics commission, and Cox demoted him from deputy superintendent to sergeant detective on July 3, 2024.4Lawyers for Civil Rights. Complaint – Chrispin v. Cox
Chrispin filed suit in federal court on April 3, 2025, alleging First Amendment retaliation for his police-reform advocacy and participation on the oversight commission, along with Fourteenth Amendment and state civil service claims that he was demoted without required notice or a hearing.4Lawyers for Civil Rights. Complaint – Chrispin v. Cox
On March 30, 2026, U.S. District Judge Allison D. Burroughs granted Cox’s motion to dismiss, ruling that Chrispin had not plausibly alleged that accepting the appointment was protected expressive conduct or association. The dismissal came with leave to amend within 21 days.5Massachusetts Lawyers Weekly. Chrispin v. Cox, Civil Action No. 25-cv-10793-ADB
The Abasciano Termination and POST Complaint
Former officer Joe Abasciano says he was fired in 2023 in political retaliation by Cox and the Wu administration for publicly criticizing the city’s COVID-19 vaccine mandate and for anonymous social media posts about the January 6, 2021, Capitol riot. An earlier BPD internal review had cleared him over those posts.6Boston Herald. Former Boston Cop Seeks POST Decertification of Cox, Five Other BPD Heads
In December 2024, the Massachusetts Civil Service Commission vacated the termination, finding the tweets were protected speech and that the two earlier investigations clearing Abasciano were “more objective, timely and thorough” than the later review that led to his firing, which “relied on erroneous facts and conclusions that were not substantiated by credible evidence.”7Police1. Termination of Boston Officer Who Sent Pro-Trump Jan. 6 Tweets Vacated, Commission Rules
In November 2025, Judge Burroughs granted Abasciano partial summary judgment on his First Amendment retaliation claims in a pending federal case that also includes disability and religious discrimination allegations. In January 2026, he filed complaints with the POST Commission seeking decertification of Cox and five other BPD officials, alleging patterns of retaliation, untruthfulness, and abuse of authority.6Boston Herald. Former Boston Cop Seeks POST Decertification of Cox, Five Other BPD Heads
The Karen Read Case Credibility Dispute
Cox was pulled into the Karen Read murder case when defense attorney Alan Jackson accused him of lying about what he knew regarding former Canton police officer Kelly Dever. Dever had worked dispatch the night John O’Keefe died in January 2022, later joined the BPD, and testified for Read’s defense at the June 2025 retrial, where she retracted earlier statements she had given FBI agents and described them as a “false memory.”8Boston 25 News. Did Ex-Canton Cop Change Her Story After Meeting With BPD Commissioner?
Cox publicly said he had “nothing to do with Karen Read” and denied knowing Dever was connected to the case. Jackson produced a February 22, 2024, email from an FBI assistant special agent in charge to Cox that referenced “the Read investigation” and named Dever, and pointed to Cox’s official calendar, which listed a meeting with Dever the next day. Jackson called for Cox to be added to the Suffolk DA’s “Brady list” of officers with credibility issues and asked the POST Commission to open a disciplinary investigation.9NBC Boston. Karen Read Boston Police Michael Cox10WCVB. Boston Police Commissioner Karen Read Case
In November 2025, the POST Commission declined to open a review, explaining that Cox is a “non-sworn civilian executive” and not a certified law enforcement officer subject to its jurisdiction. The commission said it was re-examining its policies on civilians who oversee police agencies.11Boston Herald. BPD Commish Michael Cox Not Facing Massachusetts Police Disciplinary Board
Conflict With the Civilian Oversight Office
Boston’s Office of Police Accountability and Transparency, created by the City Council in 2020, has forwarded 18 sustained complaints with recommended discipline to Cox. He has adopted the recommendation in full once, an oral reprimand, and provided no response at all in eight cases, some pending more than a year.12WBUR. Boston Police Commissioner Officers Discipline
The case cited most often involves Officer Matthew Conley. In February 2022, Conley and other Youth Violence Strike Force officers cornered three teenagers near Harbor Point in Dorchester. Transcripts of another officer’s body-camera footage quote Conley saying, “I literally had the gun in my hand, so I punched him in the face with it.” The oversight office concluded the teenagers were wrongfully targeted, that the conduct could have “resulted in death,” and recommended termination. Cox instead waited for an internal review that found the department could “not prove or disprove the allegation.” Conley received a written reprimand for a body-camera violation and was promoted to detective in December 2023. As of 2024 he earned $330,000 including overtime.12WBUR. Boston Police Commissioner Officers Discipline
In September 2025, the Civilian Review Board issued its first formal letter of criticism since its creation, alleging Cox “consistently” ignores the oversight office’s findings, and urged the City Council to compel reforms. Council President Ruthzee Louijeune said the concerns “go to the heart of public trust.” Cox has said the department’s own investigations are “thorough and fair” and more reliable than the oversight agency’s.13WBUR. Boston Police Oversight Board Commissioner Cox Discipline Rejected By late 2025, the oversight office reported that many BPD officers had refused to cooperate with its investigations.14Boston Globe. Boston Police OPAT Letters
Congressional Inquiry Into Immigration Cooperation
On May 27, 2026, House Judiciary Committee Chairman Jim Jordan and Immigration Subcommittee Chairman Tom McClintock sent Cox a letter demanding records of the department’s interactions with Immigration and Customs Enforcement back to 2022. The letter cited ICE data saying BPD had ignored 167 detainer requests in 2025 for people with criminal histories, a figure that conflicted with Cox’s reported count of 57. The committee accused Boston of policies that “prioritize criminal and illegal aliens over American citizens” and set a June 10, 2026, deadline for a response.15House Judiciary Committee. Letter to Boston Police Department Commissioner Cox16Boston Globe. House Republicans Boston Sanctuary Policies
Cox remained in office as of that date, and Mayor Wu had not publicly commented on calls to strengthen oversight-office authority or respond to the Civilian Review Board’s criticism.13WBUR. Boston Police Oversight Board Commissioner Cox Discipline Rejected