Law of the MountedLaw of the Mounted is a 1928 American silent Western film directed by J.P. McGowan and starring Bob Custer, Cliff Lyons and Mary Mayberry.SynopsisA Mountie officer on the trail of some fur thieves, discovers they are also tied up in a murder he is investigating.Cast Bob Custer Cliff Lyons J.P. McGowan Mack V. Wright Bud Osborne Mary Mayberry Lynn Sanderson Frank Ellis Sally Winters