In the past also there were "a onetime compliance opportunity to escape prosecution" were declared to offer schemes to the dishonest people. The full chapter 4 of my book, "A fraud in the Indian Constitution" (www.amazon.in/FRAUD-IN-THE-INDIAN-CONSTITUTION/dp/9352353986) is dedicated in underlining with illustration how the traitors and anti-socials become patriots by going through these schemes and mocking at the honest taxpayers. These schemes also highlight the helplessness or unwillingness of any Government to check the black money - the main reason is that most of the black money holders are politicians, high level bureaucrats and their friendly businessmen. So these schemes will come hereafter also with same 'one time tag'. Otherwise how they can whiten the ill-gotten money they made through bribes, scams, corrupt practices, manipulations, etc.
Also read my other blogs on different subjects: