[Osem]

Given the squalor the thousands of 'refugees' in Calais decided they'd rather endure for years than registering in France, I'd say it'd be hard to come up with a detention regime which would be harsher or more of a deterrent. As long as these people believe they will be better off here and able to use the system (or lack of it) to their advantage (something they clearly feel they can't do in places like France) they'll keep coming here. The best we can do to keep the numbers under control is make sure more are apprehended, detained and deported so the message that the UK isn't an easy touch slowly gets across. It's a nonsense that large numbers of illegals are arrested then allowed to just wander off and disappear into the black economy.