Peter Bibring is a nationally recognized civil rights lawyer and an expert in police practices—with more than 20 years of advocacy in state and federal courts, the California legislature, and local governments. He has served as of counsel with Iredale & Yoo since 2025.
Peter worked as an attorney with ACLU of Southern California for seventeen years and served as Director of Police Practices for the ACLU of California from 2014 to 2021. There, Peter brought cutting-edge cases on policing; forged public access to government records; advanced free speech, privacy and journalists’ rights; and exposed jail and prison conditions as well as racial and religious discrimination. He litigated cases at all levels of state and federal trial and appellate courts, including the United States Supreme Court and the California Supreme Court.
Peter also worked with families of impacted by police violence and community advocates to pass legislation reforming key California laws that govern policing—in every aspect from use of deadly force and racial profiling to decertifying police officers with records of serious misconduct. His cases helped effectively end the use of gang injunctions, transformed public access to police surveillance records, changed policies at major police departments and state agencies, and helped protect journalists, protestors, unhoused people, workers, and others from government abuse.
From 2023 to 2025, Peter served on the executive team at the Los Angeles County Office of Inspector General (OIG), providing oversight of the Los Angeles County Sheriff’s Department and the Los Angeles County Probation Department. At OIG, Peter investigated and monitored all aspects of the agencies’ operations including uses of force, deputy-involved shootings, in-custody deaths, internal affairs and discipline systems, jail and detention center conditions, and deputy gangs.
Peter is a widely recognized expert on policing, public records, privacy, national security, and the First Amendment. He has testified as a before the California Legislature, served as an advisor and subject-matter expert on policing for the California Commission on Peace Officer Standards and Training and as a commissioner for the Los Angeles County Blue-Ribbon Commission on Public Safety, has spoken at RAND and the Brookings Institute, and routinely comments on legal matters in local and national media.
Before joining ACLU SoCal, Peter worked in private practice litigating class action cases on behalf of low-wage, immigrant workers challenging abusive employment practices and bringing cases on behalf of domestic workers trafficked by their employers.
Peter graduated magna cum laude from New York University School of Law where he was an editor-in-chief of the N.Y.U. Review of Law & Social Change and a Florence Allen Scholar, and magna cum laude from Harvard University with A.B. in physics. He clerked for Judge Pierre N. Leval on the United States Court of Appeals for the Second Circuit and Judge Marilyn Hall Patel on the United States District Court for the Northern District of California.