Law enforcement in the United Statesis primarily the responsibility of local police departments andsheriff's offices, withstate policeproviding broader services.Federal agenciessuch as theFederal Bureau of Investigation(FBI) and theU.S. Marshals Servicehave specialized duties, including protectingcivil rights,national securityand enforcingU.S. federal courts' rulings and federal laws.[295]According to theBureau of Justice Statistics, andCharles H. Ramsey, formerPhiladelphia, Pennsylvaniapolice chief, appearing onMeet the Press, there are about 18,000 U.S. police agencies in the United States. That number includescity policedepartments, county sheriff's offices, state police/highway patroland federal law enforcement agencies.[296]State courts conduct most criminal trials whilefederal courtshandle certain designated crimes as well as certain appeals from the state criminal courts.