In England, it's easy. There is the police, they drive cars, and they can arrest you.
In America, it's a lot more tricky. There's State Troopers, county police, town police, metro police, park police, the sheriff, the FBI, the CIA and a whole lot more. And they all drive cars with flashing lights on top.
So who does what, and what can they do to me?
Put another way, if I drive by one of these guys in a car and give them the Bird which ones can chase me and arrest me?
A State Trooper?
A State Trooper who happens to be out of State?
A County Sheriff?
The Park Police?
I just don't get it. Which ones could someone Bird and where?