Sheriff of Clark County, officially The Sheriff of the County of Clark, is the chief law enforcement officer of Clark County, Nevada. The Sheriff heads the Las Vegas Metropolitan Police Department, is elected by the citizens of Clark County, and is an independent agency with joint policing of the City of Las Vegas and of unincorporated Clark County. The sheriff is the only elected head law enforcement officer within the city and county, and, as such, is not under the direct control of the city, county, state, or federal government.