This was split from https://www.physicsforums.com/showthread.php?t=410628 The most often discussed definition here is actually what constitutes "due process". We have protection from state government based on most of the Bill of Rights through the "Due Process" clause of the 14th amendment but it has taken over a century of judicial "activism" for us to get that far. Originally it was interpreted to mean merely that all persons should receive a "fair" trial, though without actually defining what constitutes a "fair trial". The "Right to Privacy" is a greater example as even the majority opinion for the decision that instituted it admitted that it is not something that could be pointed out in the constitution but that only by cross referencing several clauses could one find it hanging nebulously between the lines. Roe v. Wade being an extension of the "Right to Privacy" is all the more derivative. Miranda is still being argued among the justices within the last decade I believe. The Miranda decision itself says that it is not a right.