 A grand jury petition , bearing over 1 @,@ 400 signatures across 134 pages , was filed with the Tulsa County election board by Medlin on November 6 , 1989 . The petition alleged that local and state officials violated the state 's open meetings , conspiracy , and conflict of interest laws while planning the turnpike . The election board certified the petition as meeting the required threshold of 1 @,@ 000 signatures on December 15 . Work on the turnpike continued despite the investigation . After meeting for seven days , on January 19 , 1990 , the grand jury determined that there was no evidence to support the allegations and no need for further investigation . 
