The proposed electoral law known as 1+3 required a parliamentary candidate to be elected in four different constituencies.
The 1+3 system required a candidate whose primary constituency was from the central to have one secondary constituency from each of the other regions of the country.
"The proposals were in many ways the most original political reform to be recommended in Uganda since independence and also represented some of the most innovative and brilliant ideas to emerge out of Africa," Prof Mazrui wrote in his book Cultural Engineering in Eastern Africa.
Why the new law
In coming up with the new law, which Obote called the 'single member-multiple districts' (constituencies), he wanted to broaden the MP's outlook on national issues.
A paper in the Journal of Commonwealth Political Studies by D. Cohen and J. Parson titled The Uganda People's Congress Branch and Constituency Elections of 1970, the authors say: "... overlapping districts are needed to form electoral alliances.