Rule 71. Process in Behalf of and Against Persons not Parties

When an order is made in favor of a person who is not a party to the action, that person may enforce obedience to the order by the same process as if a party; and, when obedience to an order may be lawfully enforced against a person who is not a party, that person is liable to the same process for enforcing obedience to the order as if that person were a party.