For years, retired police officer Paul Dostie has been working alongside his dog Buster to unlock mysteries. They have located the remains of fighting men who fell long ago on foreign battlefields, and the bodies of victims of unsolved crimes or disappearances. In all, Dostie says, Buster has helped find the remains of about 200 people.
Associated Press photographer Gregory Bull joined the pair in the high desert of California's Eastern Sierra region, where they were searching for signs of a boy who disappeared in 1967. The 12-year-old canine keeps up a heavy workload even though he has lost a leg to cancer. "He's a one-in-a-million dog," Dostie says.
