My brother is in law enforcement. His uniform is standard and yes, it is form fitting as most other guys. He does have his shirts altered in the torso to fit better (his waist is much smaller than his chest).
He is a man and is comfortable with himself. Regardless of what others think, there is no way he or any of these others gentlemen can conceal their "packages." Fortunately, that is something I don't think he puts much emphasis on. It is there; it is going to show. Smile... be happy.
Having been a cop for many many years, I can attest to the fact that, yes, the uniform pants are "snug", but they do give when you really need to move. Most times, no matter what you do to try and conceal yourself, there's just no getting around the fact that you're going to show quite a bulge. My brother is also a cop, actually Chief of Police, and we use to complain about the uniforms. As far as the vests,
WOULDN'T go on patrol without one, having been shot once at close range. I guess what I'm trying to say is, being horny, yes it happens, when you stop a hot looking driver, you get back into your car and you pop a hardon, we're all human, but sex is the last thing on your mind when you pulling someone over. Stay safe!
Peace