A federal judge in California narrowed multidistrict litigation from tuna buyers, partially granting and partially denying summary judgment for the defendant tuna manufacturers. The litigation alleges that tuna manufacturers engaged in a conspiracy to fix prices of packaged tuna. The judge found that certain claims failed under South Carolina state law but allowed other multistate claims to move forward, upholding findings by another judge prior to consolidation of the cases. These civil cases follow efforts by the U.S. Department of Justice to convict tuna manufacturers for price-fixing.