A college professor accused of organizing a swingers club and holding private orgies in China was sentenced to 3 1/2 years in prison, officials said, in a case that touched off national debate about sexual freedom.

Ma Yaohai, 53, was convicted and sentenced on charges of group licentiousness for participating in group sex parties, said an official from the Qinhuai District Court in southeastern Nanjing. The official, who declined to give his name, refused to answer further questions.

Ma, along with 21 other people, was arrested and charged last year — the first time anyone has been charged under a 1997 law in a case that has snagged huge public interest with its titillating details. It also generated debate about sexual freedom in a nation trying to reshape its own modern morality.

Ma's attorney Yao Yong'an said his client, who was the only one to plead innocent, plans to appeal the verdict.