Ricky, a Coast Guard Maritime Safety and Security Team San Francisco (91105) canine, conducts a sweep of a cabin aboard the Alaska Marine Highway System ferry vessel Aurora during a joint law enforcement operation in Whittier, Alaska, March 14, 2018. The Coast Guard, Alaska State Troopers and other agencies partnered together during the law enforcement operation to detect and deter illegal activity on Alaska's waterways. U.S. Coast Guard photo by Petty Officer 1st Class Bill Colclough.