In the Montana Incident Report section of the GER is there any allowance for an employee for another agency to be the cause of the incident?

The fields in the State Specific Information section of the GER module are taken from the actual state forms. To specify an employee from another agency to be the cause of the incident, you can select 'Visitor' from the 'Other Person Action' dropdown and enter the name of the person in the 'Person Name' field.