AOG if for example a stowaway is found on a truck that has come over from France and they have no identification papers , which is normally the case, they can not be sent back to France, firstly there is no PROOF as to who they are or that they have come from France,( they could have got on the truck in Dover for example) and secondly France will not accept them and just turn them back here leaving us to pay the fare both ways.
There are currently several 1,000 people from various Asian nations living in England who wish to go back home. But as they destroyed their identification papers as soon as they got here they are stuck here. Their home nations will not issue new passports or travel documents as they can not PROVE who they are or what country they come from. It is a classic case of 'Catch 22', they destroy their ID to avoid being sent back against their will but when they WANT to go back the lack of ID prevents that as well.