Four-time Iditarod Champion Jeff King said in an interview Thursday that as “sad and disturbing as domestic abuse is,” it’s not the Iditarod’s place to impose penalties.  
“Censure is a pretty big deal and we have a legal system that is supposed to try and find guilt where there is, and then assess penalties,” he said.
The Iditarod is not an investigatory organization, he said.

I agree with Jeff on his points ... but the ITC has a duty to all of the participants, their dogs, and the spectators, to make the event reasonably safe.  To have someone with a documented "flash-temper" and a proclivity towards violence, as a competitor, can incur legal and financial liabilities.