The Office of the Custos evolved from Jamaica's colonial past and can be traced back to the fourteenth century England when in 1391 King Richard II issued the Grand Commission appointing Custodes and Justices of the Peace to assist in maintaining law and order in the counties.

Ministry Paper Numbered 2, Appendix I, approved by Parliament on the 5th day of July, 1959 and gazetted on the 5th day of February, 1963 outlined the following new procedures regarding the appointment and functions of the Custos:

"BE IT ENACTED, by the Queen's Most Excellent Majesty, by and wit hthe advice and consent of the Senate and House of Representatives of Jamaica, and by the authority of the same, as follows: - "