Answer:
Strict scrutiny is a form of judicial review that courts use to determine the constitutionality of certain laws. Strict scrutiny is often used by courts when a plaintiff sues the government for discrimination. To pass strict scrutiny, the legislature must have passed the law to further a "compelling governmental interest," and must have narrowly tailored the law to achieve that interest.
Strict scrutiny is the highest standard of review which a court will use to evaluate the constitutionality of governmental discrimination. The other two standards are intermediate scrutiny and rational basis review.