The Missouri Constitution is the fundamental legal document that outlines the structure and function of the state government in Missouri. It establishes the rights of citizens and the responsibilities of government officials. The current version was adopted in 1945, replacing an earlier constitution from 1875. The constitution is divided into several articles that cover various topics, including the legislative, executive, and judicial branches. It also includes provisions for local governments and the amendment process, allowing for changes to be made as needed to reflect the evolving needs of the state's residents.