The answer is in a NY Times archived article from way back in 1999:
A Federal judge has dismissed a lawsuit by a man who was barred from the New London police force because he scored too high on an intelligence test.
Nice! We wouldn’t want a smart cop. Only ignorant dipshits need apply, please.
The judge referred to claimed the ruling didn’t violate equal protection under the law because the “No bookreadin’ types” rule applies to any applicants. So as long as any intelligent people are denied an interview for a job as a police officer in New London, CT, that’s “not discrimination.”