State lawyers say a judge made a mistake by having closed meetings with defense attorneys and allowing secret defense testing of evidence from a shooting spree by motorcycle gang members in Custer State Park in 2006. 

In a document filed with the South Dakota Supreme Court, state lawyers have asked the justices to overturn a circuit court order that keeps reasons for the testing confidential and keeps the results secret. 

State lawyers say they have a right to that information as part of the two-way discovery process between the prosecution and defense in trial preparations. 

The flap has developed in a case involving two Hells Angels who are charged with shooting six rivals during the 2006 Sturgis Motorcycle Rally.