Shoplifting. It wasn't me, but I'm looking into Kmart's policies and procedures on shoplifting.?

A friend of mine was caught shoplifting in Kmart. They forcably restrained him, in a headlock. The guy was about 350 pounds and probably close to six foot six. My friend is perhaps 140 pounds and 5'7' My friend was almost out the door when the guy stepped in front of him and demanded him to return the mechandise. My friend said he didn't have any. He then demanded more loudly and my friend handed him the single car freshener he had. He then stepped to the side to leave and the guy tackled him. He was not provakative or anything in that matter to provoke anything physical. The guy then told him to stop ulting him and began to hit him repeatedly. My friend never once touched him, all on camera to prove it. The only thing he said was, I'm not resisting, I'm not resisting! And then when he was on the floor pinned it was My dad is going to kick my ***. The guys remark to that was your going to have your *** kicked here in a second. Is it in Kmart's policies and procedures that they can forcably retain someone? Especially over .99 cents worth of undamaged product? The guy was vicous for no realiable reason as far as a bystander is concerned. I had several people ask me what happened that a very large man would beat on a boy... Anyways, I totally agree that what he do was very very stupid and irresponsible. However I'd just like to know Kmart's policies and procedures on the subject of shoplifting for when my friend has to appear in court.