Legal discrimination occurs when laws or policies treat individuals or groups unfairly based on characteristics such as race, gender, age, or disability. This can manifest in various areas, including employment, housing, and education, where certain groups may be denied equal opportunities or rights. In many countries, legal discrimination is challenged through civil rights legislation and court cases. Organizations like the American Civil Liberties Union (ACLU) work to combat such discrimination, advocating for equal treatment and protection under the law for all individuals, regardless of their background.