An Act relative to Massachusetts state sovereignty

This bill restricts Massachusetts law enforcement agencies from entering into new or extended agreements with federal authorities regarding immigration detention and deputization. It requires any such agreement or federal deputization to receive prior written authorization from the Governor, ensuring state control over these partnerships. Additionally, the law limits existing immigration detention contracts to a maximum of ninety days after the bill takes effect. The Attorney General is empowered to take legal action against any entity that violates these restrictions, while allowing officers to continue their standard public safety duties.