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The Northern Cheyenne Tribal Government adopted a new ordinance Thursday that updates the tribe's drug, traffic and trespass laws.

Northern Cheyenne Tribal President Llevando Fisher signed the new ordinance this week implementing temporary changes to the tribe's law-and-order code.

The tribe announced it would update its tribal law-and-order codes in March after a gun battle at a Lame Deer gas station served as a "wake-up call" for the government, Fisher said.

Since the shootings, Fisher has issued two executive orders, including one that set a curfew on the reservation for certain public areas.

In the new ordinance, Fisher called for the Department of Justice and the Bureau of Indian Affairs to dedicate more resources to enforcing laws on tribal land. The two departments are called upon to also keep the tribe better informed of federal efforts to maintain law and order on tribal lands.

Montana Gov. Steve Bullock has spoken with Fisher regarding the changing laws. On Monday, Bullock arranged for an airplane to take National Guard members and tribal police over the reservation looking for encampments on the land. Fisher said a report is being complied on what was found.