Federal Judge Refers Philadelphia DA Larry Krasner to DOJ for Potential Criminal Investigation

What Happened

On Tuesday, September 15, 2026, U.S. District Judge Paul Diamond formally referred Philadelphia District Attorney Larry Krasner and his top deputy, Matthew Stiegler, to the Department of Justice (DOJ) for a possible criminal investigation. This significant action stemmed from evidence uncovered during proceedings in a murder conviction case. Judge Diamond specified that the evidence could potentially constitute several serious federal offenses, including false statements, perjury, obstruction of justice, and conspiracy. The referral marks a direct escalation of judicial scrutiny into the operations of the Philadelphia District Attorney's Office under Krasner's leadership. The judge also issued an order disqualifying both Krasner and Stiegler from further involvement in the specific case, though he opted against disqualifying the entire DA's office from the matter. This decision immediately places the two high-ranking prosecutors under the potential purview of federal investigators, a rare occurrence for sitting district attorneys.

What the Evidence Establishes

Judge Paul Diamond's referral is predicated on his assessment that specific evidence presented in the murder conviction case strongly suggests criminal conduct by District Attorney Larry Krasner and Deputy Matthew Stiegler. The judge's findings, though not yet detailed publicly beyond the broad categories, point to potential violations related to the integrity of court proceedings. Specifically, the allegations include the making of 'false statements' to the court, committing 'perjury' under oath, engaging in 'obstruction of justice' to impede legal processes, and participating in a 'conspiracy' to commit these acts. These are grave accusations that, if substantiated by a DOJ investigation, could lead to federal charges. The judge's decision to refer the matter to the DOJ, rather than simply imposing sanctions within his own court, indicates a belief that the alleged conduct extends beyond mere procedural errors and into the realm of criminal culpability, warranting a full federal inquiry into the actions of the Philadelphia prosecutors.

Where the Accounts Conflict

The primary conflict in accounts arises directly between U.S. District Judge Paul Diamond's findings and District Attorney Larry Krasner's immediate response. Judge Diamond's referral explicitly states that evidence suggests potential criminal acts, including false statements and obstruction. In direct opposition, Krasner issued a public statement asserting, "I respectfully and vigorously disagree with the court’s findings of fact and conclusions of law." He further indicated his intention to appeal the judge's decision "as soon as the law allows," signaling a strong legal challenge to the judge's assessment. Krasner's statement also noted that the matter remains "pending," which he claimed limited his and his office's ability to provide a full media response. This creates a clear divergence: the federal judiciary, through Judge Diamond, has identified potential criminal behavior, while the subject of the referral, DA Krasner, vehemently denies the validity of those findings and intends to contest them legally. The Department of Justice has not yet commented on the referral, maintaining its standard practice of not discussing potential or ongoing investigations.

Context and Stakes

This referral occurs amidst a broader political and legal landscape for District Attorney Larry Krasner, a prominent figure in the progressive prosecutor movement. Krasner has faced significant criticism from various political factions and law enforcement groups since taking office in 2018, particularly regarding his policies on criminal justice reform and his office's handling of certain cases. The Fox News report specifically mentions that the Pennsylvania Supreme Court is currently debating the future of an impeachment trial for Krasner, indicating existing pressure on his tenure. A federal judge's referral to the DOJ for potential criminal investigation represents a substantial escalation beyond local political disputes or state-level impeachment efforts. The stakes are exceptionally high: if the DOJ pursues an investigation and finds sufficient evidence, Krasner and Stiegler could face federal indictment, which would have profound implications for their careers, the Philadelphia District Attorney's Office, and the broader progressive prosecutor movement nationwide. It also underscores the tension between judicial oversight and prosecutorial discretion.

What to Watch Next

The immediate focus will be on the Department of Justice's response to Judge Diamond's referral. While the DOJ typically does not comment on such matters, any public acknowledgment or, conversely, a prolonged silence, will be closely observed. Historically, the DOJ evaluates such referrals carefully, often initiating preliminary inquiries before deciding whether to launch a full-scale criminal investigation. Concurrently, attention will remain on District Attorney Larry Krasner's promised appeal. The timing and legal arguments presented in his appeal will be critical in understanding his strategy to challenge Judge Diamond's findings and the disqualification order. Furthermore, the ongoing deliberations by the Pennsylvania Supreme Court regarding Krasner's impeachment trial add another layer of complexity; a federal investigation could influence or be influenced by the state-level proceedings. Observers will also monitor any further statements or actions from Judge Diamond or other federal judicial bodies that might shed more light on the specific evidence that prompted this referral. The legal and political ramifications are expected to unfold over several months.

Bottom Line

U.S. District Judge Paul Diamond's referral of Philadelphia District Attorney Larry Krasner and Deputy Matthew Stiegler to the Department of Justice for potential criminal investigation marks a significant development in the ongoing scrutiny of Krasner's office. The allegations of false statements, perjury, obstruction of justice, and conspiracy, if pursued by the DOJ, could lead to federal charges and have severe consequences for both individuals and the Philadelphia legal system. Krasner has publicly stated his strong disagreement with the judge's findings and his intent to appeal, setting the stage for a protracted legal battle. This federal action adds a new dimension to the existing pressures on Krasner, including a pending state-level impeachment debate. The coming weeks and months will reveal how the DOJ proceeds with its evaluation and how Krasner's legal team responds to these serious accusations, with potential impacts extending far beyond Philadelphia's city limits.