TMZ Sports has obtained police body cam footage from the SWAT team raid on ex-NFL wide receiver Davone Bess ... including the moment officers sicced an attack dog on him.
27 police officers assisted in the June 19th incident -- including the SWAT team, which was called in because Bess had barricaded himself in his Arizona home, brandished a knife and had threatened to shoot cops.
According to the police report, obtained by TMZ Sports, the whole thing started when Bess fled during a routine traffic stop -- and locked himself in his Gilbert, AZ home.