A man locked for 30 hours in an Illinois jail while trying to visit his son, who is an inmate, is filing a lawsuit. ABC News reports Farad Polk's son has been a prisoner at the Cook County Jail for the past 13 months on a heroin conviction. When Polk visited earlier this month he said he took a seat in what he thought was the visiting room that was undergoing renovations. Instead of seeing his son the door was shut. Polk said he heard voices in the next room and called for help. "He was locked in an 8 by 8 room for over 30 hours and made to sit in that room with out any food, any water, no toiletries, no bedding," said Cannon Lambert, Polk's attorney. Cara Smith, executive director of the Cook County Jail, offered an apology and says changes have been made in the jail's visitation system. "We've implemented some additional checks and balances and that we remain incredibly sorry that he had to go through this experience," Smith said.