Deputy Chief Nunn served with the San Bernardino County Sheriff’s Department for 34 years. He retired as the Chief of the Administrative Services Bureau, which addresses the departments Human Resource/Training/Scientific Investigations elements. Over his career he served as Commander of the Professional Standards Division dealing with Internal Affairs, Civil Liability, and Background Units. He also served as Commander of the Lake Arrowhead Station and the Regional Training Center. Outside the department he serving as the Chairman of the Police Legal Advisors for the California Peace Officers Association and co-authored the Pitchess Manual, the Skelly Manual, and the Internal Affairs Manual. Chief Nunn was elected and served for13 years on the San Bernardino County Retirement Board, three terms as Chairman, and he was the acting Administrator for six months.
He currently sits on the Editorial Board for Thompson Publications in Washington D.C. He is a qualified expert in Federal Court on Police Policy and Training. Chief Nunn holds Basic, Intermediate, Advance, Supervisory, and Management P.O.S.T. certificates. Jim is a graduate of San Bernardino Valley College, Southern Illinois University, and the Wharton School of Finance. He currently is on staff at Cal State Long Beach, Cal State San Jose, and Cal State Humboldt in the P.O.S.T. Management Program.