A K-9 police dog's attack on a Black motorist in Ohio is resurrecting questions about race relations and law enforcement tactics.

As he stood with his hands up beside the highway on July 4, at least six law enforcement officers surrounded him at a distance, one calling forcefully to the K-9 handler: “Do not release the dog,” highway patrol video shows.

Nevertheless, a Belgian Malinois is seen on the video either breaking free or being set loose. At first, the animal seems confused, racing past Rose toward officers at the far end of the truck, then turning back and running for Rose, then 23.

By then the trucker is on his knees, hands still high, as an officer shouts, “Get the dog off of him!”