I do not follow the purport of the amendment. I do not understand how it can be correct for an immigration officer to direct that all persons on board a vehicle seeking to land in the State should get off. I also do not understand the logic behind the suggestion that there should be a new law to allow officers to ask people to alight from a vehicle, ship or aeroplane and present themselves for checking, but that the obligation on the carrier should be limited to cases where non-nationals are being carried.