The Jamaica Constitution, 1962 was drafted by a bipartisan joint committee of the
Jamaican legislature in 1961-62, approved in the United Kingdom and included as the
Second Schedule of the Jamaica (Constitution) Order in Council, 1962 under the West
Indies Act, 1962. It came into force with the Jamaica Independence Act, 1962 of the U.K. Parliament, which gave Jamaica political independence.
Read more on the Constitution here: The Jamaica Constitution 1962