 Another milestone in Singapore Prison Service’s history was the official opening of Tanah Merah Prison and Changi Women’s Prison/Drug Rehabilitation Centre on 23 April 1994 by Minister for Home Affairs Wong Kan Seng.In 1998, Chua Chin Kiat took over as Director of Singapore Prison Service from Poh Geok Ek when the latter retired.Under Chua’s directorship, the Singapore Prison Service organised a visioning exercise in January 1999 to collectively craft a shared vision and conduct a review of its mission to better accommodate the changing needs and expectations of its stakeholders and the public.