Justice Kriegler was a deputy attorney general for the State of California from 1975-1985, assigned first to the Criminal Law Division and later to the Special Prosecutions Unit, where he handled organized crime trials and investigations, including prosecutions for murder, kidnapping, major frauds, and multi-county narcotics trafficking. His appellate experience as an attorney included approximately 200 felony appeals, three arguments in the California Supreme Court, and one appearance before the United States Supreme Court. He received a B.A. from California State University, Northridge, and a J.D. from the Loyola School of Law (Los Angeles).
Justice Kriegler has been a lifelong resident of the San Fernando Valley. He has been active in a variety of community organizations, including Sherman Oaks Little League and Toluca Pony Colt Baseball. Justice Kriegler runs the Teen Court program at Van Nuys High School, from which he graduated in 1968