Legal continuity

When applied to a constitution, this term refers to the document having been authorized by some other law. The Bangladesh constitution was not based on legal continuity because it was traced to a proclamation of independence that was illegal under Pakistani law (and Bangladesh was part of Pakistan at the time). The South African interim constitution was the product of legal continuity because it was enacted following the procedures of the existing (white supremacist) constitution. This technical legal point has no necessary relationship to how much the content of the document departs from the past.