The Guggisberg Constitution of 1925 was a set of constitutional reforms implemented in the Gold Coast colony (present-day Ghana) during the colonial period. The constitution was named after the Governor of the Gold Coast, Sir Charles Guggisberg, who introduced the reforms. The basic contributions of the Guggisberg Constitution of 1925 were:

Established a legislative council: The constitution established a legislative council composed of both elected and appointed members, which was responsible for making laws for the colony.

Increased representation of Africans: The constitution increased the number of elected African members on the legislative council, which allowed for more African representation in the government.

Created an executive council: The constitution also established an executive council composed of appointed members, which was responsible for the administration of the colony.

Created a judiciary: The constitution created a judiciary with a chief justice and other judges, which was responsible for interpreting laws and administering justice.

Separated powers: The constitution separated the powers of the legislative council, the executive council, and the judiciary, which helped to ensure that the different branches of government were independent of each other.

Improved the rights of citizens: The Guggisberg Constitution was designed to improve the rights of citizens of the colony, it provided for the protection of the rights of individuals and the recognition of customary laws.

Increased the participation of the educated class: The constitution allowed for the participation of educated class of the colony in the government.

These were the basic contributions of the Guggisberg Constitution of 1925 in the Gold Coast colony, it helped to lay the foundation for a more representative and democratic government in the colony and paved the way for future constitutional developments in the Gold Coast