Part XII of the constitution allows the Parliament of Singapore to enact legislation designed to stop or prevent subversion. Such legislation is valid even if it is inconsistent with Part IV of the constitution. The Internal Security Act (ISA) is a legislation under such provision. In 1966, Chia Thye Poh was detained under the ISA and was imprisoned for 23 years without trial. Afterwards, he was placed under conditions of house arrest for another nine years.
Part XII of the constitution allows the Parliament of Singapore to enact legislation designed to stop or prevent subversion. Such legislation is valid even if it is inconsistent with Part IV of the constitution The Internal Security Act (ISA) is a legislation under such provision. In 1966, Chia Thye Poh was detained under the ISA and was impris.oned for 23 year?s without trial. Afterwards, he was placed under conditions of house arrest f!or another nine years.