From the BBC:
The study into the economic impact of an amnesty for illegal immigrants was carried out by the London School of Economics (LSE). It estimates that, if a minimum of five years' residence in the UK were needed to qualify, 450,000 illegal immigrants could be granted amnesty.This would allow those who are not contributing to the nation to start working and paying taxes. Boris said:
It's a mess, but Boris might be able to salvage some good out of a terrible situation.
"If it does look as though they could make a contribution to society, we should regularise their status or offer them the chance of regularising their status. "If people are going to be here and we've chronically failed to kick them out it's morally right that they should contribute in their taxes to the rest of society."
UPDATE: Tonight's Panorama - Immigration - Time for an Amnesty? Click HERE to watch it