A panel of the 9th US Circuit Court of Appeals upheld California 's assault weapons ban in a 2-1 ruling last December .
A panel of the 9th US Circuit Court of Appeals upheld California 's assault weapons ban in a 2-1 ruling last December .
The December decision by the 9th U.S. Circuit Court of Appeals upheld California 's law banning certain assault weapons and revived the national gun-ownership debate .