Are local police allowed to cross municipalities to arrest people?

[Syrinx]

I saw something weird yesterday.

I don't know what the dispute was about. I know nothing about the specifics of the situation. At all.

But I saw a Northport police car, lights flashing, with a motorist pulled over. In the Cottondale area, something like fifteen miles from Northport.

Maybe the police were chasing them from Northport or something. But do police from one town have the authority to arrest someone outside their jurisdiction?

Just wondering.

On a related note, I've been seeing the highway patrol on the local back-roads a lot more, recently. And state troopers too.

It's almost like a message is being sent...