A grand jury was empaneled in June 2005 to investigate the charges against Fletcher's administration. By August, the jury had returned indictments against nine administration officials, including state Republican Party chairman Darrell Brock Jr. and acting Transportation Secretary Bill Nighbert. All of the indictments were for misdemeanors such as conspiracy except those against Administrative Services Commissioner Dan Druen, who was charged with 22 felonies (20 counts of physical evidence tampering and 2 counts of witness tampering) in addition to 13 misdemeanors. On August 29, Fletcher granted pardons to the nine indicted administration officials and issued a blanket pardon for "any and all persons who have committed, or may be accused of committing, any offense" with regard to the investigation. Fletcher exempted himself from the blanket pardon. The next day, Fletcher was called to testify before the grand jury, but refused to answer any questions, invoking his Fifth Amendment right against self-incrimination.