Conrad Black is a very famous, wealthy and powerful Canadian businessman.
Five years ago, Conrad Black was sent to jail because he broke several laws having to do with the money he made and owed.
He was convicted of obstruction of justice and mail fraud because he lied about how much money he really had, to pay off his debts.
He also tried to hide information from the authorities about the amount of money he made from selling his newspapers and real estate.
The judge sent him to jail for six-and-a-half years.
Late this month, Black is going to ask the judge to let him have some time taken off his prison sentence.