Montgomery County Shreiff Bobby Dierks was scheduled to appear in District Court in Independence this afternoon facing two charges of attempting to intefere with an investigation brought by a special prosecutor. Dierks did not appear in court for the hearing but was represernted by an attorney. Through his attorney Sheriff Dierks entered a plea of not guilty and is required to report within 7 - 10 days. The defense also requested a jury trial in the case. The judge granted a motion for a 6 person jury trial set for August 12th and a pre-trial set for June 12th. The special prosecutor was also granted a request that gives Dierks a zero tolerence ruling that he not contact any witnesses in the case with the exception of witnesses who are employed at the Sheriff's Department.