Constitution:
25 April 1977; major revisions October 1984
Legal system:
based on English common law; judicial review of legislative acts limited to matters of interpretation; has not accepted compulsory ICJ jurisdiction
Suffrage:
18 years of age; universal
Executive branch:
chief of state: President Jakaya KIKWETE (since 21 December 2005); Vice President Dr. Ali Mohammed SHEIN (since 5 July 2001); note - the president is both chief of state and head of government
head of government: President Jakaya KIKWETE (since 21 December 2005); Vice President Dr. Ali Mohammed SHEIN (since 5 July 2001)
note: Zanzibar elects a president who is head of government for matters internal to Zanzibar; Amani Abeid KARUME was reelected to that office on 30 October 2005