They were using OC shots from a airgun. It keeps officers at a safe distance to disperse OC at the guy. He was on PCP and obviously it had no effect. Using K9 on this guy could have gone 2 ways. He would not feel the bites and could hurt the dog or he would resist and get wounded severely by the bites. The officers did as trained, but going against a person on PCP is like trying to take down a zombie who feels no pain and has incredible strength.
That explains alot the way he just took them shots and didnt even flintch. Thanks for the info bncrazy77