An appeals court on Friday upheld the corruption conviction and 15-year sentence against South Africa’s former national police commissioner, making him the most senior public official forced to serve jail time since this country became a democracy 17 years ago.

The former commissioner, Jackie Selebi, 61, collapsed at his home upon hearing the news and had to be taken to a hospital, his lawyer told the local news media. Mr. Selebi, who has been free on bail pending the appeal, will have until Sunday to report to jail.