Teh Cheang Wan was an architect who was in charge of the Housing Development Board as Minister for National Development of Singapore. He served as the minister between 1979 and 1986. Teh was investigated for corruption in November 1986 and was found dead on 14 December 1986.
Teh was investigated for corruption by the Corrupt Practices Investigation Bureau for accepting two bribes of $400,000 each in 1981 and 1982. Then Minister for National Development, he had allegedly accepted bribes totaling $1 million from 2 private companies for helping them retain and buy over a piece of state land for private development. In November 1986, the then Prime Minister of Singapore, Lee Kuan Yew, approved an open investigation on his alleged corruption, however, the papers were issued to the Attorney-General on December 11. Though Teh maintained his innocence, he committed suicide before being charged for the offences, on December 14. In his suicide note, Teh wrote: As a result of the suicide, the Attorney-General could not proceed with the charges, although Lee Kuan Yew responded with a condolence letter after ascertaining the cause of his death with Ministry of Health. The letter recognized his role to help modernized construction industry and speed-up the building of expressways and lessened traffic jams. On 26 Jan 1987, Lee Kuan Yew delivered a parliamentary speech by reading out the suicide note addressed to him, written by Teh. He then revealed for the first time that Teh was being investigated for accepting bribes. Lee stressed that "there is no way a Minister can avoid investigations, and a trial if there is evidence to support one." Later in the book titled "Lee Kuan Yew: The Man and His Ideas", published in 1998, Lee reiterated the importance of having a system where people act in accordance with certain principles.
"The purpose is not just to be righteous. The purpose is to create a system which will carry on because it has not been compromised. I didn't do that just to be righteous about Teh Cheang Wan. But if I had compromised, that is the end of the system."
However, there was a subsequent investigation into the matter as a result of allegation of Chiam See Tong, the opposition MP, that there were unanswered questions into the whole episode. On 20 January 1987, the State Coroner returned a verdict of suicide due to an overdose of amytal barbiturate. In December 1987, the findings of the Commission of Inquiry were presented to the President of Singapore, however, they were not released to the public till the end the year. The entire probe lasted 31 months.
