In a series of Tweets Saturday night Hammer says the officer asked whether he was on parole or probation, then tried to pull him out of his vehicle. "...Contrary to his personal beliefs, all people of color are not on parole or probation fat boy !!!," Hammer tweeted.
In a statement to CNN, police in Dublin, CA, outside of Oakland, said Hammer was driving a vehicle with expired registration and said he wasn't the registered owner. "After asking Hammer who the registered owner was he became very argumentative and refused to answer the officer's questions," said police spokesman Herb Walters.
"Instead of being bitter, I'm taking the opportunity to make this a 'teachable moment’ and 'eye opener' for my many friends & colleagues," Hammer tweeted.
A court date is scheduled for next month, and police have until then to decide on any charges.