Northern Territory Consolidated Regulations Northern Territory Consolidated Regulations6.12. Service on agent
(1) Where a contract has been entered into in the Territory by or through an agent residing or carrying on business in the Territory on behalf of a principal residing or carrying on business out of the Territory, originating process in a proceeding relating to or arising out of the contract may, by leave of the Court given before the determination of the agent's authority or of his business relations with the principal, be served on the agent.
(2) Where an order giving leave is made under subrule (1):
(a) the order shall limit a time within which the defendant shall file an appearance; and
(b) a copy of the order and of the originating process shall without delay be sent by pre-paid post to the defendant at his proper address out of the Territory.