Read also: “Marxist plot” revisited by Singapore Window.
And: Singapore is holding 12 in “Marxist Conspiracy” by The New York Times.
In May 1987, the government of then-Prime Minister Lee Kuan Yew accused 22 church workers and social workers of being part of a plot to topple the Singapore government. The local media called it a “Marxist Conspiracy” and named former student union leader, Tan Wah Piow, as the “mastermind”. Vincent Cheng was alledged to be the man whom Tan Wah Piow, who had left Singapore for England in 1976, tasked to build up a network of “conspirators” in Singapore.
Codenamed “Operation Spectrum”, the Internal Security Department (ISD) swooped in on the 22 (in two different operations, in May and June) and arrested and detained the accused under the Internal Security Act (ISA).