Dr Chia Thye Poh is a Singaporean former political prisoner. Detained under the Internal Security Act of Singapore for allegedly conducting pro-communist activities against the government, he was imprisoned for 23 years without charge or trial and subsequently placed under conditions of house arrest for another nine years – in which he was first confined to the island of Sentosa and then subject to restrictions on his place of abode, employment, travel, and exercise of political rights.
