Catchwords:

MIGRATION – appeal from decision of primary judge –judicial review of decision of Administrative Appeals Tribunal to affirm decision not to revoke mandatory visa cancellation – whether primary judge erred by failing to find that the Tribunal’s decision was legally unreasonable –impugned statement by Tribunal about relative availability of drugs in detention and in the community – whether finding unsupported by any evidence or other material and without probative basis – where Tribunal’s statement was based on matters commonly known or personal or specialised knowledge and not required to be supported by specific evidence – appeal dismissed with costs