Mission District Cops Jump Man In Front of 16th & Valencia Cafe

I was there when this happened and am guessing it was a drug arrest. Someone in cafe said they saw the guy put a small big in his mouth before they threw him to the ground. It couldn't have been a very large amount but swallowing even a small amount of cocaine or heroin in a bag can still be deadly.

Is it illegal to take pictures of undercover cops? If so how could one ever document abuse by them. If not is it illegal for them to take cameras from or threaten people taking pictures of them? They threw the guy on the ground and he was screaming and it was right in front of the front window of Muddy Waters so if they really cared about being recognized they would have least not had the guy on the ground there.

It could be that the cop who came inside to threaten one of 4 people taking pictures was worried about getting in trouble because he forgot his badge. If you look carefully at pics all the other undercover cops have badges on strings around their necks except for that guy who isn't openly identifying himself as a cop during the arrest.