Clark County’s soon-to-be new sheriff, Carter Harris, was sitting in the corner of the sheriff’s office headquarters in downtown Vancouver Wednesday morning playing with a plastic toy barn. Nearby a crowd of sheriff’s office personnel, some wearing specialized equipment, were waiting for their new boss to take center stage.Carter, 4, who was wearing a department-issued uniform, was diagnosed with leukemia in December 2010 and was waiting to become Clark County’s latest participant in the Washington State “Chief for a Day” program.“I think you’re ready to go, bud,” said Sgt. Shane Gardner, who was pinning a name tag on the boy’s white button-up shirt and several stars on his collar.Gardner introduced Carter to Sheriff Garry Lucas, who was wearing a white shirt, green tie and pants that matched Carter’s.“He has the same stars you have,” Gardner said. “Nobody else does.”Gardner explained to the boy that he would soon be the boss of the dozens of employees waiting in the lobby, including a deputy in SWAT gear and several others with specialty uniforms.The boy took it all in while staying close to his mom, Robin Harris.“Are you ready?” she whispered into his ear.After a quick family introduction by Sheriff Lucas, Carter promised to uphold the laws of the United States and state of Washington. He then signed his name on a certificate. Things were official after his mom pinned on his sheriff’s badge.