Rosemary (“Ruby”) Nidiry is the senior counsel for Law Enforcement Leaders to Reduce Crime & Incarceration (LEL). In this role, Ruby is responsible for all oversight and operations of LEL and supervises the group’s staff and work.

Ruby brings to the role extensive relevant experience in federal prosecution as well as in policymaking, philanthropy, and advocacy. She spent over 15 years in federal criminal prosecution and policymaking, including as an Assistant U.S. Attorney in the U.S. Attorney’s Office for the Southern District of New York for over a decade, a member of President’s Obama’s Special Task Force on Detainee Disposition, and as counsel to the Assistant Attorney General for National Security at the U.S. Department of Justice. From 2017 to 2022, she served as the Deputy Director of Fair and Just Prosecution (FJP). In that role, Ruby was involved in the management, strategic planning, and day-to-day operations of a national non-profit organization that created and sustained a network of elected prosecutors committed to furthering a new vision for prosecution. Before joining FJP, Ruby was a Director of Criminal Justice for the Laura and John Arnold Foundation. She has also served as a senior investigator for the United Nations International Independent Investigation Commission in Beirut, Lebanon, and as an Attorney-Adviser in the Office of Legal Counsel at the U.S. Department of Justice.

Ruby holds a JD from Columbia University School of Law and a BA from Princeton University. She began her career as a law clerk to Judge Robert P. Patterson of the U.S. District Court for the Southern District of New York and Carlos F. Lucero of the U.S. Court of Appeals for the Tenth Circuit. She’s on the board of directors of the Women’s Prison Association, the nation’s first organization focused on women impacted by incarceration.

Ronal Serpas is a Co-Chair for the Law Enforcement Leaders to Reduce Crime & Incarceration. Previously, he served as Superintendent of the New Orleans Police Department in Louisiana and Police Chief of the Nashville Police Department in Tennessee. He is also a Professor of Practice at the Loyola University’s Criminal Justice Department in New Orleans.

Peter J. Koutoujian is the Sheriff of Middlesex County, Massachusetts. Over the years, Koutoujian has implemented a medication-assisted treatment program and specialty units for young adults and veterans under his care, among numerous innovative initiatives. He is currently leading the creation of the Middlesex County Restoration Center and completing his term as President of Major County Sheriffs of America. Previously, Koutoujian also served as a prosecutor, state legislator, and president of the Massachusetts Sheriffs’ Association.

Sheriff Koutoujian sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

John Choi serves as County Attorney of Ramsey County, Minnesota. In 2011, he was sworn in as the first Korean-American chief prosecutor in the nation. Since taking office, Choi has been a bold and innovative leader by diverting specified juvenile cases to an external review panel, no longer prosecuting felony cases rooted in low-level traffic stops to reduce racially biased stops, successfully advocating for state drug law reforms, establishing a veterans court, and more. Prior to this role, Choi served as Saint Paul City Attorney.

County Attorney Choi sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Carmen Best is the former Police Chief of the Seattle Police Department in Washington. After rising through the ranks from officer to chief, Best became the first Black woman to hold this role. While chief, Best increased diversity within the force, prioritized community engagement, strived for greater equity in traffic enforcement, and more. Since retiring, Best has published her book Black in Blue, advocated for driver’s license suspension reform, and now shares her law enforcement expertise as an NBC/MSNBC analyst.

Best sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Hassan Aden is a Former Federal Consent Decree Monitor for Cleveland, Ohio and Baltimore, Maryland and the Founder of the Aden Group. Previously, he was an Executive Fellow for the Police Foundation and served as the Police Chief in Greenville, North Carolina and as the Deputy Police Chief in Alexandria, Virginia.

Aden sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Mark Earley is a former State Senator and Attorney General of Virginia, and is the immediate past President and CEO of Prison Fellowship USA. He is currently a member of the Board of Directors of Prison Fellowship International and is also a Signatory on Right on Crime.

Earley sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Walter Holton is the founder of the Holton Law Firm and the former United States Attorney for the Middle District of North Carolina under President Clinton.

Holton sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

James (Jim) Johnson is currently Chief Operating Officer of Trinity Church Wall Street. Johnson formerly served as Corporation Counsel for the City of New York and counsel at Debevoise & Plimpton, where he previously was a partner. Prior to these roles, he served as Undersecretary for Enforcement at Department of the Treasury and Deputy Chief of the Criminal Division in the Southern District of New York.

Johnson sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Kathleen O’Toole is the former Police Chief of the Seattle Police Department in Washington and Police Commissioner of the Boston Police Department in Massachusetts.

O’Toole sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Brett Tolman is the Executive Director of Right on Crime —— a leading conservative criminal justice initiative. Previously, he served as the U.S. Attorney for the District of Utah from July 2006 to December 2009, under President George W. Bush. Tolman is also a former shareholder and Chair of Ray Quinney & Nebeker P.C.’s White Collar, Corporate Compliance, and Government Investigations Section.

Tolman sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.

Cyrus Vance is the former District Attorney of New York County and served in this role for 12 years.

Vance also sits on the Executive Board for the Law Enforcement Leaders to Reduce Crime & Incarceration.