As most employers know, it is unlawful to discriminate against an individual based on their race, color, religion, sex, national origin, sexual orientation, gender identity, genetic information, age, pregnancy, or disability. When asked incorrectly, even a seemingly innocent question can violate these rules and support a claim that a hiring decision was based on impermissible criteria. This article from 2021 provides a helpful guideline for appropriate interview inquiries. Employment laws are ever evolving and may vary by state or province. Therefore, employers should speak with an executive search firm or attorney before establishing a set of interview questions or applicant testing mechanisms as a standard component of the hiring process.