Suspect classification refers to a class of individuals that have been historically subject to discrimination.
There are four generally agreed-upon suspect classifications: race, religion, national origin, and alienage. However, this is not an inclusive list.
Determining a Suspect Classification
"Discrete and insular minorities"
In determining whether someone deserves to be considered within a suspect classification, a court will look at whether the person is a "discrete and insular minorit[y]." In determining whether someone is a discrete and insular minority (and thus the person's claim deserves strict scrutiny), courts will look at a variety of factors, including but not limited to whether the person has an inherent trait, whether the person has a trait that is highly visible, whether the person is part of a class which has been disadvantaged historically, and whether the person is part of a group that has historically lacked effective representation in the political process.