Gee, I didn't know that cities and states hired stupid people to become police officers and state troopers and the like! 
I don't give any of these cops a break, a benefit of a doubt or anything else that would give them an advantage in a courtroom. You assault a deaf person, you WILL be arrested by the deaf person and charged with at least a misdemeanor; injury to their assistance animal will be upgraded to a possible felony; kill the animal and consider finding a cellmate named Moose to be your best friend, until he or she finds out you were a police officer. 
Simply put: Violence and threats of violence against deaf and their persons (including assistance animals) will be convicted at the highest extent of the law and will be enforced.
