This week a federal judge took the rare step of asking the federal prosecutor to look into the Philadelphia District Attorney’s Office. U.S. District Judge Paul S. Diamond referred Philadelphia District Attorney Larry Krasner, one of his top supervisors, and the DAO itself to the U.S. Attorney’s Office for possible criminal investigation. The referral grew out of questions about how the office handled a federal habeas petition filed by a man named Dennis Johnson.
What Judge Paul S. Diamond actually did
Judge Diamond wrote that the court record contains evidence suggesting the DAO and two named officials “may have violated the law.” He disqualified District Attorney Larry Krasner and Assistant District Attorney Matthew Stiegler from personally handling the Johnson matter and sent the file to the U.S. Attorney’s Office for review. The judge said the possible offenses include false statements, perjury, obstruction of justice, and conspiracy — big accusations, and exactly the sort that should be studied by prosecutors, not glossed over.
Why this criminal referral matters for accountability
The heart of the problem is a 2022 concession the DAO filed in federal court saying the defendant was entitled to habeas relief. That concession was later described in court filings as flawed and containing material errors. Witnesses told the judge they were pressured to “protect the office” rather than tell the court the truth. A prosecutor’s duty is to the truth and to the court, not to institutional cover-ups. If the judge’s description is accurate, this isn’t just sloppy lawyering — it is a threat to the rule of law and to public confidence in prosecutions in Philadelphia.
What testimony revealed about the DAO’s internal conflicts
Multiple current and former prosecutors testified at evidentiary hearings about how the concession was prepared. One ADA who signed the original filing later resigned; others raised conflict concerns and refused to be part of what they saw as an improper course of action. Testimony that supervisors sought to pin blame on a subordinate and threatened consequences for dissenters formed the backbone of the judge’s troubling findings. This episode appears to be another chapter in ongoing scrutiny of how the Philadelphia District Attorney’s Office handles post‑conviction work.
What comes next and why readers should care
The judge cannot bring criminal charges himself. His referral asks the U.S. Attorney’s Office to decide whether to open a criminal probe. That review will determine if an investigation is warranted and, if so, whether charges follow. Meanwhile, Krasner has been disqualified from personally handling the Johnson case. Voters and citizens should watch closely: public trust in prosecutors is fragile, and when a DA’s office is accused of putting institutional interests ahead of truth, the people deserve answers, not spin. If the system is to mean anything, no one is immune from scrutiny — not even the city’s top lawman.

