From this story on twincities.com:
U.S. District Judge Barbara Crabb wrote in her order that the tribes overstepped their authority when they granted tribal hunters permission to kill deer at night without the state's approval. The judge said the move violated a ruling she made more than 20 years ago that requires the Chippewa and the state to negotiate changes to tribal hunting rules and get her approval before making them final. She encouraged both sides to reach a deal. "The proper response cannot be for each side to decide on its own what the law permits, particularly with an issue that involves public safety concerns," Crabb wrote.