Sovereign Treaties are about power sharing agreements and 'it's a very fine line between what you keep and what you give-up.'
The constitutional power of the executive colonial State government will only permit the States to negotiate on matters that are defined by those State constitutions. Whereas a national agreement with the Federated Commonwealth and the colonial States has the capacity to permit the State governments to negotiate Treaties, which include fundamental human rights.
It is the Commonwealth government's constitution that permits the international laws to have effect within the Australian legal jurisdiction. The States cannot negotiate these rights without the Commonwealth approving them. More here
Video's 1, 2 and 3 will take you through Treaty/Treaties and also the Makarrata process which was mentioned in the Uluru Statement, and give you a basic understanding of the differences, flaws and complexities.
Video 4 explains the process known as a Unilateral Declaration of Independence (UDI), which is a formal process leading to the establishment of a fully recognized sovereign state. Read More