Retroactive law

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(Law) one which operates to make criminal or punishable, or in any way expressly to affect, acts done prior to the passing of the law.

See also: Retroactive

References in periodicals archive ?
In a timely section on what he calls "the faltering constitutional presumption against retroactive laws," Epstein is mainly concerned about the effect of retroactive law in the economic order, on what it does to property rights, contract law, and tort law.
The latest developments reignite a bitter controversy between the state government and these JUA customers that lay dormant since the Supreme Court's ruling in January, when the justices said the state's taking of the money violated an existing contract, and such a retroactive law was unconstitutional.
However, the retroactive law will not become legally binding until it is published in Dubai's official gazette.
Doe, the court ruled 6-3 in favor of upholding a retroactive law requiring registration of convicted sex offenders.
You can't make a retroactive law unless the law says it was retroactive and that's not the case here.
And yet one doesn't have to look as far south as the Andes to find examples of courts willing to soak foreign companies, often through the use of novel or retroactive law.
Some such examples include: retroactive law, as in "strict liability" and the Superfund Act, where a producer or an insurer may be hit with heavy unforeseen liability without the possibility of retroactive product pricing or insurance premium tariffs to cover it and stimulants of litigation -- - punitive damages, costs unawarded, uncontrolled juries, contingent fees and again retroactive law - which at great expense and much waste foster the socially destructive and pervasive adversarial syndrome.
But a government supposedly guided by the rule of law cannot simply pass retroactive laws to overrule court decisions when it doesn't like them.
Although the Supreme Court of the United States has countenanced retroactive legislation in the past, a legislature's power to enact retroactive laws is significantly circumscribed by the federal Constitution.
Young argued that the measure would violate the Ohio constitution, which, he said, forbids such retroactive laws.
and Florida constitutions do not expressly prohibit the enactment of retroactive laws,[29] the proposed statute would be unconstitutional if it did not conform to several U.
Retroactive laws are not expressly prohibited by the United States Constitution, although ex post facto literally means "after the fact.