Ellingburg v. United States · ¶41
The modern precedents follow Calder's limitation of the Ex Post Facto Clauses to laws that impose criminal punishment. Based on “Justice Chase's now familiar opinion in Calder,” this Court has repeatedly held that the Clauses apply exclusively to laws that “retroactively alter the definition of crimes or increase the punishment for criminal acts,” but not to other kinds of retroactive laws. Collins v. Young- blood, 497 U. S. 37, 41–43 (1990); see also, e. g., Kansas v. Hendricks, 521 U. S. 346, 370 (1997); Smith v. Doe, 538 U. S. 84, 92 (2003).Read in context ›
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