In apparent contradiction of his previous claim that the tariff could be enforced with existing laws, on January 16 Jackson sent his Force Bill Message to Congress. Custom houses in Beaufort and Georgetown would be closed and replaced by ships at each port. In Charleston, the custom house would be moved to either Castle Pinckney or Fort Moultrie in Charleston Harbor. Direct payment rather than bonds would be required, and federal jails would be established for violators the state refused to arrest and all cases arising under the state's nullification act could be removed to the United States Circuit Court. In the most controversial part, the militia acts of 1795 and 1807 would be revised to permit the enforcement of the customs laws by both the militia and the regular United States military. Attempts were made in South Carolina to shift the debate away from nullification by focusing instead on the proposed enforcement.