Minn. Stat. § 629.363: RAILWAY CONDUCTOR; AUTHORITY TO ARREST.

A conductor of a railway train may arrest a person committing an act upon the train prohibited by sections 609.681, 609.72, and 609.855, subdivision 1, with or without a warrant, and take that person to the proper law enforcement authorities, or to the station agent at the next railway station. The station agent shall take the arrested person to the law enforcement authorities. A conductor or station agent possesses the powers of a sheriff with a warrant in making arrests under this chapter.