Where does it say he was dealing crack? I guess my reading comprehension isn't all that I thought. So let's say he was selling an 1/8th to his buddy. Oh the horror, look at all the victims! But if he was selling crack - maybe a little beating isn't so bad, and we really have no idea so it's hard to be the judge.
I would say he's got his head up because he's never been arrested before, and he look a little dazed. I'm sure it would be hard to think straight with a forceful police boot to the temple. Now, it does look like he could be moving his hand to his pocket, but it looks more like he's moving his hand to his side because he got kicked in the ribs. That would hurt and even could have broken some ribs, as he probably started selling drugs because he couldn't afford milk or calcium enriched tropicana.
Now imajin this - you say he's breaking the law and should be beat! In the many parts of the USofA sodomy was illegal until 2003. Do sodomites deserve beatings for law breaking?
Edit: Also, it doesn't look like the police are worried about weapons either as they don't even pat him down once he is cuffed…