...existed, reenacted the law with amendments and provided that it continue until May 22, 1924. Held: (a) A law depending upon the existence of an emergency...operate if the emergency ceases or the facts change. P. 547. (b) Where an order of the Rent Commission, although retrospective, was passed some time after...

...regulation could continue to be upheld against the contention that the emergency no longer existed, said: " We repeat what was stated in Block v. Hirsh, 256 US...or the facts change even though valid when passed. Perrin v. United States, 232 US 478, 486, 487. Missotiri v. Chicago, Burlington & Quincy RR Co., 241...

...eyes to an obvious mistake, when the validity of the law depends upon the truth of what Is declared." "A law depending upon the existence of an emergency...or the facts change even though valid when passed." * * * " We need not inquire how far this court might go in deciding the question for itself, on the...

...eyes to an obvious mistake, when the validity of the law depends upon the truth of what is declared. "A law depending upon the existence of an emergency...to uphold It may cease to operate if the emergency cases or the facts change even though valid when passed. * * * " We need not inquire how far this court...

...to determine upon measures for the public welfare, which may be expressed by the Legislature withthe future, It can be no more than prophecy, and Is liable...or the facts change, even though valid when passed. Perrin v. United States, 232 US 478, 486, 487, 34 S. Ct. 387, 58 L. Ed. 691, 695, 696 (1914) ; Missouri...

...to an obvious mistake, when the validity of the law depends upon the truth of what is declared. ... A law de~pending upon the existence of an emergency...or the facts change even though valid when passed. Perrin v. United States, 232 US 11914] 478, 486, 487, 58 L. ed. 691; Missouri v. Chicago, Burlington...

...situation, the Court in part said: "A law depending upon the existence of an emergency or other rertain state of facts to uphold it may cease to operate if...or the facts change even though valid when passed. Perrin v. United States, 232 U. 8. 478, 486, 487, 34 Sup. Ct. 387, 58 L. Ed. 691. Missouri v. Chicago,...

...to an obvious mistake, when the validity of the law depends upon the truth of what is declared. ... A law depending upon the existence of an emergency...operate if the emergency ceases or the facts change." The Economic Aspects of Rent Regulation. — Closely connected with the legality of rent regulation...

...an obvious mistake, when the validity of the law depends upon the truth of what is declared. * * * And still more obviously so far as this declaration...or the facts change even though valid when passed. * * * "The order, although retrospective, was passed some time after the latest statute, and long after...

...existence of the emergency was entitled to great respect, it was not conclusive; and, further, that a law " depending upon the existence of an emergency...or the facts change even though valid when passed." It is always open to judicial inquiry whether the exigency still exists upon which the continued operation...