Other key issues include creating and managing a blacklist of artists deemed critical of the government and pressuring local companies to donate billions of won to two dubious foundations allegedly controlled by Choi. Prosecutors also suspect that the former leader pressured local firms to sign business contracts with Choi's companies. During two preparatory sessions held at the court, Park's attorneys denied all charges leveled against her. She was not present at the sessions as they were not mandatory. Unlike preliminary sessions, suspects are required to attend formal hearings. Park is the country's third former president to stand trial over corruption allegations after Chun Doo-hwan and Roh Tae-woo who were convicted in 1996-97. The court is expected to deliver the ruling before the period of Park's detention expires six months after the indictment, which took place on April 17. Her second hearing is scheduled for Thursday. The court plans to hold hearings every two to three times a week to review evidence and question witnesses.'