Another person who appears to confirm the police were conducting the roll call/lineup:
Mr. LIEBELER - Did you let anybody out of the building after you got there?
Mr. BARNETT - No, sir; until they were authorized.
Mr. LIEBELER - Who was in a position to authorize people to come in and out?
Mr. BARNETT - Well, of course, for sometime no one left except city, county, and Federal officers, and then after the people in the building were took into the small room there and questioned, they were brought to the door by a lieutenant, which I don't remember his name, but that was sometime after, and he brought them to the door and told us to let them out.