The Speaker of the Senate presides over the plenary assembly of the Senate, manages and controls debates in the assembly, is responsible for ensuring the democratic functioning of the Senate, maintains order and security in the assembly and enforces the Rules of the Senate. He or she also represents the Senate at both the national (to the other institutions) and the international level. Additionally, he or she chairs the Bureau, which determines the order of business, supervises the administrative services of the Senate, and leads the Senate's activities.