You only know what the lawsuit says. My guess is there was some other issues with personality evaluated.

Think of a pilot. A pilot needs to be in command, exert control and assess situations in the fly. Yet a pilot also must be disposed to understand and follow complex rules and procedures precisely. The military does a lot of screening to identify that personality, and if you’ve known pilots, you can spot one.

I would presume to guess there are criteria for a police officer that an exam would try to identify, if allowed to do so.