Bulletproof vests aren't.
The bigger they are, the harder they fall. They also punch, kick, and choke harder, too.
The speed at which you respond to a fight call is always the slowest legal speed. You want to arrive in time to arrest the winner and put the loser in an ambulance.
OC works on cops too, and regardless of wind direction, will always blow back in your face.
High speed chases will always proceed from an area of light traffic to an area of extremely heavy traffic.
If you know someone who tortures animals and wets the bed, he is either a serial killer or he works for Internal Affairs.
Placing your pistol back in a holster with your finger on the trigger will cause you to walk with a limp.
Flash hiders don't, nor do silencers.
If you have cleared all the rooms and met no resistance -- Congratulations: you kicked in the door of the wrong house.
If a cop swings a baton in a fight, he will hit other cops more often than he will hit the bad guys he swings at.
Domestic arguments will always migrate from an area of few available weapons (living room), to an area with many available weapons (kitchen).
If you have just punched out a handcuffed prisoner for spitting at you, smile, because you are about to become a star on the Six O'Clock News.
Bullets work on veteran cops too. They also work on weight lifters, martial arts experts, department marksmen, Vice cops, S.W.A.T. jocks, and others who consider themselves immortal.
When a citizen sees red-and-blue lights approaching at a high rate of speed, he will always pull into the lane the cop needs to use.
If you drive your patrol car to the geometric center of the Sahara Desert, within five minutes someone is going to pull along side you and ask for directions.
You can never drive slow enough to please the citizens who don't need a cop, and you can never drive fast enough to please the ones who do.
Any suspect with a rifle is a better shot than any cop with a pistol.
On any call, there will always be more 'bad guys' than there are good guys, and the farther away your back-up, the more there will be.
The longer you've been a cop, the shorter your flashlight and your temper gets.
Whatever you are about to do, if there is a good chance it will get you killed, you probably shouldn't do it.
You should never do a shotgun search of a dark warehouse with a cop whose nickname is "Boomer".
The better you do your job, the more likely you are to be shot, injured, complained on, sued, investigated, or sub-poena'd on your day off.
If a large group of drunk bikers is "holed-up" in a house, the Department will send one deputy in a beat car. If there is one biker"holed-up" in a house, they will send the entire S.W.A.T. Team.