Constitution:
3 June 1959; amended 1965 (based on pre-independence State of Singapore Constitution)
Legal system:
based on English common law; has not accepted compulsory ICJ jurisdiction
Suffrage:
21 years of age; universal and compulsory
Executive branch:
chief of state: President S R NATHAN (since 1 September 1999)
note: uses S R NATHAN but his full name and the one used in formal communications is Sellapan RAMANATHAN
head of government: Prime Minister LEE Hsien Loong (since 12 August 2004); Senior Minister GOH Chok Tong (since 12 August 2004); Senior Minister Shunmugam JAYAKUMAR (since 1 April 2009); Minister Mentor LEE Kuan Yew (since 12 August 2004); Deputy Prime Minister TEO Chee Huan (since 1 April 2009) and Deputy Prime Minister WONG Kan Seng (since 1 September 2005)