The primary role of a legislative body in a government is to create, amend, and repeal laws. Legislatures represent the interests of constituents, providing a platform for public debate and deliberation. They have the authority to shape policy through oversight, budgeting, and enacting legislation. Additionally, legislative bodies often serve as a check on executive power, ensuring accountability within the government. Through committees and subcommittees, legislators can scrutinize proposed laws and conduct investigations, thereby facilitating a functioning democracy that reflects the will of the people.