I've recently come across a Youtube.com video "Lee Harvey Oswald in Dallas Police Department."
At about the 5:08 mark we see Oswald in a T-shirt being taken to a police line up. When this is shown its rare to get the audio of Oswald complaining. But, here we do.
"I was just photographed in a T-shirt and now they are taking me to a line up among with these men (inaudible) will be picked out. Right? " And you hear someone say, "That's right."