Law enforcement K9s and their handlers honed their skills Tuesday as the National Narcotics Dog Detector Association (NNDDA) held an annual certification exercise in Bulloch County. Several K9 teams gathered at Connections Church on Cawana Road Tuesday morning for the narcotics testing, then moved to the WW. Mann Retreat Center in Brooklet Tuesday afternoon for the patrol/bite work session, said Bulloch County Sheriff’s Sgt. Kirk McGlamery, who handles the department’s K9 Max, a German Shepherd. Hosted by the Bulloch County Sheriff’s Office and sponsored by Franklin Chevrolet, the certification exercise is in its second year in Bulloch County, he said.