Northern Territory Consolidated Acts Northern Territory Consolidated ActsNo acts, matters or things done, or documents signed or issued, by the Registrar-General, Deputy Registrar-General, or Acting Registrar-General of the Northern Territory during the period between 1 January 1911 and 10 September 1924 shall be deemed invalid on the ground merely that the officer concerned had not made the declaration required by section 20 of the Real Property Act 1886 of the State of South Australia in its application to the Territory.