The current jurisdictional Constitution of the Laws of Malawi is of 1994 according to the wikipedia article on Malawi(https://en.wikipedia.org/wiki/Malawi).
This means, the Constitutional of the Laws of Malawi, has not had any amendment since 1994 though it is possible that several Acts of Parliament have been Amended in the orderly way from 1994 to the present day. Recognising that this is probably the first amendment of the Constitution of Malawi since the day of Independence(6th July 1964), there might be two jurisdictional constitutions between 6th July 1964 and the present day(22nd August 2017). The first Constitution of the Laws of Malawi, has been applicable between the 6th July 1964 and 18th May 1994, and the second constitution has been applicable from 18th May 1994 - 22nd August 2017.
Before the establishment of the Country of Malawi in 1964, there has been a British Protectorate Of Central Africa established in May 1893 to 1st August 1907 when the Nyasaland protectorate was established separating it from the region covered by the British Protectorate which are in Accordance to the exploratory expeditions of Dr. David Livingstone.
It may be questioned why the boundaries of these regions are different but I think the difference emanates from the type of influence and the time of active influence over the regions due to the presence of Europeans during their journeys of exploration. I am sure has ended up evolving the culture of the regions in quite a different way to necessitate the establishment of the boundaries.
I may have to list down the Governments looking over the issues of the region covering Malawi as follows:
- British Central African Protectorate. 1893 to 1907.
- Nyasaland Protectorate. 1907 to 6th July 1964.
- Federation of Rhodesia and Nyasaland.1st August 1953 to 31st December 1963.
- Malawi. 6th July 1964 to the present day.
The Laws of The British Protectorate are partially applicable to assets established within (1893 to 1907) by its government. The Laws of the Nyasaland Protectorate may be partially applicable to assets established within 1907 to 1964 by its government, the Laws of the Federation of Rhodesia and Nyasaland may be partially applicable to assets established within 1953 to 1963 by its governance, the Laws of Malawi which are active from 1964 to date, may be completely applicable applicable to assets established after 1964 and perhaps partially applicable to the assets established before 1964 by previous governments.
Issues of Nyasaland seem to transition over the national level but issues of the British Central African protectorate and Federation of Rhodesia and Nyasaland seem to transition over the international region whose present day jurisdiction falls under SADC.The International jurisdictions seem to apply through diplomatic jurisdictions and international laws principles.
I should think such recognition of limitedness of jurisdiction of laws applicable to government and governance should reduce conflicts developing due to different expectations from the international community over the regions the governing entities have been active and their time of activity and the national community bound by the laws of the presently active government and governance of the Land of Malawi.