You're correct that (for example) a NH state police officer driving on a Massachusetts highway won't be pulling anyone over. But this was a crime that occurred in Maine, so the Maine state police would have the right to make the arrest. There are extradition laws, but those pertain to going outside the country to make an arrest.Lee Ann Daigle, 58, was busted by Maine state police outside of her Lowell, Massachusetts home on Monday,
I'm pretty uninformed when it comes to this kind of thing. But I thought police from one state couldn't arrest someone in a different state. Didn't there used to be movies about "making it to the state line" to avoid being arrested?