Northern Territory Consolidated Acts Northern Territory Consolidated Acts50. Landlord must not change locks
(1) A landlord must not, without reasonable excuse:
(a) alter or remove a lock or security device on the premises or ancillary property; or
(b) add a lock or security device to the premises or ancillary property,
without the consent of the tenant.
Penalty: 100 penalty units.
(2) A landlord who has altered or added a lock or security device on premises or ancillary property must immediately after the alteration or addition provide to a tenant a key to the lock or security device.
Penalty: 100 penalty units.