A former ICAC officer was blamed by his superior for being 'meddlesome' after he uncovered evidence that showed a man they arrested for bribery was not in Hong Kong at the time of his alleged offence, the court heard yesterday. Billy Yeung Man-wai, who testified as defence witness in a malingering case, said yesterday he found it strange that chief investigator Eric Yang Yan-tak reprimanded him for his discovery in January 2000. He said he was investigating a case in which some unlicensed hawkers were suspected of offering advantages to Housing Authority staff in return for tip-offs on raids. 'I told Mr Yang that immigration records showed that the suspect was away from Hong Kong two months before his arrest. 'He said: 'Why are you so meddlesome? I will act as if I have not seen [these records]',' Mr Yeung told Cheng Huan SC, who represented defendant Susana Chan. The witness is a manager of the Securities and Futures Commission's enforcement division after leaving the ICAC in 2000. Chan, a senior investigator, claimed that the ICAC had mounted a year-long operation on her in the guise of an investigation of her suspected malingering. But she said its motive was to see if she had leaked information about Mr Yang after she complained about him in 2002 for alleged illegal activities. In a statement submitted to court, she said she learnt that Mr Yang told his team to conceal Mr Yeung's findings until the judge raised the issue. The defendant, arrested for faking her back injury and fraudulently obtaining 402 days of sick leave from the ICAC, has pleaded not guilty to fraud. The case, before Deputy District Court Judge Joseph Yau Chi-lap, will continue today.