Chan Hiang Leng Colin v. Public Prosecutor is a 1994 judgment of the High Court of Singapore delivered by Chief Justice Yong Pung How which held that orders issued by the Government deregistering the Singapore Congregation of Jehovah's Witnesses under the Societies Act (Cap. 311, 1985 Rev. Ed.) and banning works published by the Watch Tower Bible and Tract Society ("WTBTS") under the Undesirable Publications Act (Cap. 338, 1985 Rev. Ed.) (now Cap. 338, 1998 Rev. Ed.) did not violate the right to freedom of religion guaranteed by Article 15(1) of the Constitution of Singapore.