UNFINISHED PROCESS OF DECOLONIZATION UNDER UNDD 1960
You see, Singapore declared UDI (Unilateral Declaration of Independence) on 31 Aug 1963, which was not recognised by Britain and Malaya. For a British colony to have its independence restored, the British Parliament must pass the independence act for the colony.
Singapore merged with Malaya on 16 Sep 1963 to form Malaysia. Malaysia is a sovereign nation, Malaysia is Malaya as verified by United Nations on 16 Sep 1963, just name tweaked a bit. Westminster did not pass the Parliament Act to decolonize its colonies - Spore, Sarawak, North Borneo. instead Malaysia Act in 1963 was passed in the British Parliament, vesting the power in Malaysia to hold the sovereignty of these British colonies. this is a direct transfer of colonialism, sukarno called it neo-colonialism.
The british were fond of choosing friendly regimes to pass their colonies to, who would continue their military (and US too) and economic interests in this strategic region.
In 1965, Singapore left.
The British Parliament still had to pass the Singapore Act in Westminster in 1966.
Why would Britain need to do this if Spore was independent territory in Malaysia 63-65?
But this final step is the most important process to complete decolonization. i repeat, full and complete decolonization means the colony (non-self-governing territory) is given national independence with the colonial power passing an Act to grant independence UNCONDITIONALLY AND UNRESERVEDLY.
This is the final step wanting for Sarawak and Sabah.
This is what we had been saying all the time, that is why the Peoples' Petition to United Nations is addressed to the Special Decolonization Committee C-24. to put SS back on the decolonization path, like french polynesia. we still need British Parliament to pass the Sarawak Act and Sabah Act for us to gain national independence. I always said Singapore set the precedent.
So, Sarawak and Sabah are still in the unfinished process of decolonization under United Nations Decolonization Declaration 1514, 1960.