Law Enforcement Agencies in Interlaken Park, NH NH › Belknap County Agencies serving the city of Interlaken Park in NH. Agency Types in Interlaken Park County Jails 1 agencies Municipal Police 1 agencies Parole Probation 1 agencies Sheriff 1 agencies All Agencies in Interlaken Park, NH Belknap County Sheriffs Department Belknap County Department of Corrections Belknap County Laconia Police Department Belknap County Probation-Parole Offices Belknap County
