Attorneys for a Nebraska state trooper fired for joining a group with ties to the Ku Klux Klan have another chance to argue that he should still be on the force.

In March, the state Supreme Court listened to their arguments and those from state attorneys who say Robert Henderson should have been fired. The high court then said it wanted more information before making a decision.

This time, the lawyers will focus on four key questions related to courts' oversight of arbitration decisions. The hearing is September 3rd.

Henderson was dismissed in early 2006 after patrol officials discovered he had joined a racist group and posted messages on its Web site.

Henderson, who was a trooper for 18 years, told an investigator he joined the Knights Party in June 2004 to vent his frustrations about his separation with his wife, who left him for a Hispanic man.