"'It’s not standard to conduct investigations beforehand because that delays the apprehension of suspects', he told me."

Getting a gun pointed in one's face is part of the de facto punishment for any reckless driving. Probably taught at the police academy. One student acts like the reckless driver, one police recruit is tested on their traffic stop, they run the plates, instructor says the car is or is not stolen, they cop approaches the vehicle, instructor says "bang, you're dead. A passenger laying in the back seat shot you before you even knew they were there. You're supposed to always approach every reckless driver with your gun drawn because you never know. Cops have died before that way."

The recruit who replies, "but if I didn't see the passenger, then having my gun drawn wouldn't have saved me, because my gun doesn't let me see any better." Later fails the psycho evaluation or some subjective tests to cull those that can't obey authority. After all, obeying authority is about how one behaves when one does not agree with authority, like free speech is about protecting speech one does not agree with.