Mr. Cox, who was one of the first officials to call for Mr. Kilpatrick's resignation, called the assault charges "simple and straightforward," and said the case could move through the system within 90 days.
Mr. Cox, a Republican who is widely expected to run for governor in 2010, rejected a reporter's suggestion that he was not impartial on the matter, saying, "The people of this community will make the call" as a jury on whether Mr. Kilpatrick is guilty.
But he did seek to put the assault charges in a larger context.