. Wrote:
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> Believe that every state in the union gives the rr
> police arrest authority. Goes back many many many
> decades.

There's a few exceptions; I believe Wyoming does not grant police powers to the railroad. But railroad police is recognized by MOST states, and federal law grants interstate policing powers as long as the officer is certified in one state, and the other state recognizes a railroad police officer. (In other words, a BNSF Police Officer employed and certified in Washington State has the same authority in Oregon.)

Yes, it's a very well established privilege.