When laws are changed to deliberately continue ruining someone's life, or the assumption is made that one has become a threat to society, based only on their past, with the assistance of amended laws, it is not only constitutionally offensive, but also highly prejudicial and defamation of one's character, ruining the little bit of good reputation one would have left.
The Fifth Amendment to the U.S.C. states that "no person shall be subject for the same offense to be twice put in jeopardy of life or limb."
The Double Jeopardy Clause prohibits state and federal governments from prosecuting individuals for the same crime on more than one occasion, or imposing more than one punishment for a single offense.



