July 2002: The ICAC is lambasted by police who say they are 'deeply concerned' and that the ICAC should be more circumspect after the arrest of former second-in-command of the Narcotics Bureau Senior Superintendent Sin Kam-wah sparks a public row between police and the ICAC. He is freed on bail unconditionally after being arrested by the ICAC in May on suspicion of accepting sex from prostitutes for tip-offs about vice raids. Police Commissioner Tsang Yam-pui is angry his officer's name was released despite the fact he had not been charged. ICAC chief Alan Lai Nan defends its actions and the row only cools when Tung Chee-hwa intervenes. March 2002: A judge rebukes the ICAC at the end of a corruption case for failing to reveal information to the defence in time. The case concerned a former Housing Department architect, Barry Hang Toi-on, 35, and two subcontractors, Andy Chan Shu-ming, 46, and Chang Yi-lin, 58, who conspired to bribe him in exchange for housing development projects. The judge warned he would have halted the trial if it happened again. January 19 2002: Three appeal judges rule there is insufficient evidence to show Senior Superintendent Chu Kam-yiu, 53, and businessmen Addy Chow Chi-wang, 49, and Hon Pui-tak, 61, were engaged in bookmaking. The three had been jailed for running a multimillion-dollar bookmaking business. February 8, 2001: Two anti-triad policemen, Inspector Lam Tat-ming, 47, and Sergeant Ng Sai-hing, 45, who are put back on trial for alleged corruption, are cleared after a judge in the Court of First Instance rules that 39 taped conversations containing statements by the officers were inadmissible as evidence. The hearing mirrors events less than three years previously when the judge threw out the alleged confessions, ruling that the officers' rights as suspects were violated. February 1, 2001: Loan broker Tang Hoi-lam, 51 and merchant Gu Hao, 41, are both acquitted in the District Court of plotting to bribe bank employees in an alleged attempt to help Imelda Marcos withdraw money from her late husband's bank accounts in the SAR and on the mainland. The collapse of the case came two weeks after co-accused Chi Yiu-sui, 51, a mainland merchant, and businesswoman Chuk Oi-fong, 50, were freed on the grounds that the ICAC had misled Ms Chuk into believing she would not be charged. The judge dismissed evidence from ICAC officers as inconsistent. November 11, 1999: Apprentice jockey Peter Ho Wah-lun, 27, is cleared of bribing two fellow jockeys with $130,000 to fix the outcome of races at Sha Tin. Evidence given by the ICAC star prosecution witness, under ICAC immunity, is insufficient to secure a conviction, the magistrate says.