A heavy law enforcement presence showed up in Covelo Thursday, with a state helicopter circling overhead for hours. Redheaded Blackbelt reports the operation was handled by the California Highway Patrol’s Investigative Services Unit, not local patrol officers or the county sheriff. Flight records show the CHP helicopter left Redding late in the morning, stayed over the area, and headed back mid-afternoon. Authorities say more details about what prompted the warrants should come out today.