The Ministry of Supervision is investigating at least 24 cases involving the misuse of state funds documented by the National Audit Administration - including one involving former Bank of China vice-chairman Liu Jinbao , according to an official. The unnamed official told Xinhua that the auditors had found serious cases of corruption and the ministry would 'rectify' each one. It had concluded a review into seven of the cases and had almost finished a review of another six, the official said. Mr Liu's case was investigated last year, the official said, and sent to prosecutors in January. Sources said Mr Liu would face charges over his failure to account for 'a large amount of personal assets' and his approval of illegal loans to Shanghai property tycoons under investigation for corruption. Both the National Audit Administration and the Ministry of Supervision report to the State Council. The administration has more of an investigative role, while the ministry is responsible for penalties. The ministry shares the same office and staff with the Central Commission for Discipline Inspection (CCDI), the Communist Party's top anti-corruption body. Their functions are similar, but the commission is mainly in charge of supervision and discipline in the party rank and file. Xie Qingkui , a professor at Peking University's school of governance, pointed out that the audit administration was in charge of conducting regular supervision and unearthing problems and loopholes within the system, while the ministry was responsible for acting on any cases it discovered. 'After the auditors uncover any problems, the Ministry of Supervision or the CCDI takes over. They carry out their own investigations and sometimes send more serious cases of violations to judicial departments,' Professor Xie said. He said the National Audit Administration had long been overlooked and few government departments paid attention to its work. But the situation has improved since former premier Zhu Rongji strengthened its role.