Strict scrutiny

Constitutional law of the United States
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In U.S. constitutional law, when a law infringes upon a fundamental constitutional right, the court may apply the strict scrutiny standard. Strict scrutiny holds the challenged law as presumptively invalid unless the government can demonstrate that the law or regulation is necessary to achieve a "compelling state interest". The government must also demonstrate that the law is "narrowly tailored" to achieve that compelling purpose, and that it uses the "least restrictive means" to achieve that purpose. Failure to meet this standard will result in striking the law as unconstitutional.

The standard is the highest and most stringent standard of judicial review and is part of the levels of judicial scrutiny that courts use to determine whether a constitutional right or principle should give way to the government's interest against observance of the principle. The lesser standards are rational basis review and exacting or intermediate scrutiny. These standards are applied to statutes and government action at all levels of government within the United States.

The notion of "levels of judicial scrutiny", including strict scrutiny, was introduced in Footnote 4 of the U.S. Supreme Court decision in United States v. Carolene Products Co. (1938), one of a series of decisions testing the constitutionality of New Deal legislation. One of the most notable cases in which the Supreme Court applied the strict scrutiny standard and found the government's actions constitutional was Korematsu v. United States (1944), in which the Court upheld the forced relocation of Japanese Americans in internment camps during World War II. Another example is the D.C. Circuit Court's 2007 ruling in Abigail Alliance v. von Eschenbach that compelling government interest was demonstrated in the restriction of unapproved prescription drugs.^[1]

The burden of proof falls on the state in cases that require strict scrutiny or intermediate scrutiny, but not the rational basis.