BEIJING, Feb. 13 -- Chinese authorities revealed another 16 corruption cases involving judiciaries and policemen Friday.

Of the judges, prosecutors and policemen, some have been convicted, and others are still under judicial investigation, according to a circular issued by the Commission for Political and Legal Affairs of the Communist Party of China Central Committee, which had previously exposed such cases in three batches.

Among the convicted, Yang Moulin, former head of the intermediate court of Xuancheng City in Anhui Province, received the harshest sentence, a 14-year imprisonment, for taking bribes of 340,000 yuan (54,000 U.S. dollars), and embezzling 1.37 million yuan of public funds.

In the most prominent case, a dozen policemen were punished for a scandal in Nehe Prison in Tsitsihar City, Heilongjiang Province. The case exposed flaws in management that allowed guards to aid prisoners' fraud racket.

Prisoner Wang Dong was reported to have been chatting to and subsequently blackmailing women that lived near the prison via the cellphone app WeChat.

Wang threatened to circulate nude videos and pictures of the women and succeeded in swindling two of them out of more than 116,000 yuan (about 18,000 U.S. dollars).

The warden, Gao Qingxiang, and several other managers of the prison were either suspended or sacked. Six policemen directly responsible for the scandal were put under judicial investigation.

Other transgressions revealed include seeking profits for others, having improper influence in the employment of civil servants, and protecting illegal businesses in their jurisdiction.