Assault?, Resisting Arrest? Assault on a Peace Officer? Defacing Public Property? or just a big OOOUCH?

http://www.nbcchicago.com/news/local-beat/Man-Takes-Bite-Out-of-Crime-Fighter-82030952.html

Aggravated Assault on Public Servant.

(Of course, this would have to be based on scarring, because why do men have . . . ? I'm sure everyone can fill the blank.)