The state Supreme Court has struck down much of the 2010 ethics law passed by state lawmakers. Senate Bill 844 changed campaign finance laws, gave greater authority to the Missouri Ethics Commission, created new crimes for ethics violations, and required Capitol dome keys be given to all lawmakers.

The court said Tuesday the bill violated a requirement of the state Constitution that legislation not be amended to change its original purpose. The procurement portion will remain in effect because the Supreme Court concluded that was the original purpose of the legislation.

The decision upholds Circuit Judge Daniel Green’s ruling last spring.