The Nebraska City Police Department’s K-9 officer, Mack, is a multitalented crime-fighting tool. Mack and his handler, Sgt. Chris Richardson, were the guests of the Nebraska City Rotary Club on Feb. 17. Richardson explained to club members a bit about Mack’s specialized skills. Richardson said Mack is a dual-purpose dog, which means he is certified for both narcotics and patrol work. The narcotics certification took six to eight weeks, said Richardson, and the patrol certification took nine to 12 weeks. Both certifications have to be renewed annually with the state of Nebraska. When Mack finds narcotics during a search, he gives Richardson a passive indication that he has found contraband.