Indiana Code Title 32. Property § 32-31-12-5

Sec. 5. (a) Except as provided in subsection (b), a law enforcement officer dispatched to remove a squatter shall remove the squatter from the property unless the law enforcement officer discovers credible evidence that the individual is not a squatter because the individual:

(b) A law enforcement officer dispatched to remove a squatter shall remove the squatter from the property unless the law enforcement officer discovers credible evidence that the individual is an invitee of:

A law enforcement officer dispatched to remove a squatter from a railroad or a railroad car may rely upon a statement from an individual working on the railroad or in the railroad car that the individual alleged to be the squatter does not have a lawful reason to be on the railroad or in the railroad car as credible evidence to remove the squatter under this subsection.

(c) In addition to removing the squatter from the property, a law enforcement officer may arrest the squatter if the law enforcement officer has probable cause to believe that the squatter has committed an offense.