A heroin retail syndicate starts operating at the Yau Ma Tei Fruit Market.
Officers from the then Commerce and Industry Department arrest an American Eurasian, his wife and others inside a residential flat in the vicinity of the Fruit Market for allegedly packaging heroin. A quantity of drugs is seized and charges of possessions are laid.
The Police Narcotics Bureau raids 23 locations in Kowloon and the New Territories and seizes $20,000 worth of heroin, along with records detailing bribe payments. Seven men and a woman are arrested including the mastermind and senior members of a drug syndicate active in the Fruit Market area. All are later charged with drug trafficking offences.
Three suspects in the drug case ask to meet ICAC officers, wishing to expose syndicated corruption of law enforcement officers.
Several small-scale ICAC operations lead to the arrests of 21 suspects for alleged corrupt activities.
The trial of the Yau Ma Tei Fruit Market drug case begins.
The drug case trial concludes when the mastermind pleads guilty and is jailed for 18 years. Four other principal offenders receive prison terms of 11 to 13 years.
Three convicted traffickers agree to testify for the prosecution. ICAC investigators begin taking statements in preparation for the related syndicated corruption case.
The mastermind and one principal member of the drug ring have their sentences reduced respectively to 11 years and eight years.
In a major ICAC operation, 87 police officers are arrested on suspicion of receiving bribes. All are released on bail. It is the largest number of people detained in a single operation since the establishment of the ICAC.
A number of police officers stage protest against the ICAC operations which target at police officers. They petition the Police Commissioner at the Police Headquarters.
About 40 protesters later march to the ICAC Operations Department Headquarters at Hutchison House to express their dissatisfaction.
Faced with a serious situation, the then Governor Sir Murray MacLehose issues a "partial amnesty."
The syndicated corruption case is heard in three separate trials. One suspect absconds and 26 others are charged with conspiracies to pervert the course of public justice. Consequently, 18 people are convicted and jailed for 19 months to five years.