> The former is illegal under a 1971 Supreme Court ruling that decreed IQ tests and other tests unrelated to the job to violate the Civil Rights Act of 1964 This is patently false, and in this context (flat out stating that a hiring practice is illegal) quite arguably libelous. The case in question: (1) Did not rule that IQ tests violate the Civil Rights Act, (2) Did not rule that tests unrelated to job functions vio…
https://en.wikipedia.org/wiki/Bona_fide_occupational_qualifi... Police departments have successfully sued for the use of IQ tests in their hiring practices.
More accurately, they have successfully defended suits challenging their use. (In the most notable case, with a high score being a disqualifying factor.)