Mercer County Courthouse houses the Public Defender's Office and is located in Mercer, Pa. Its Juvenile Probation Department offers community court program for first-time offenders consisting of a cross-section of trained volunteers who serve on committees within their community. Its civil department includes cases, such as business, abuse and divorce. Its criminal department deals with arrests, bails and driving under the intoxicating beverage influence case. Its orphans court includes judges, rules, trials and petitions. Its law library is maintained and operated as a research facility for use by the court, county officials, the bar and the public.