'Support our wars or you'll be denied a UK passport'

Immigrants who take part in protests against British troops could be denied citizenship of this country under controversial new Home Office rules.

The Home Secretary, Alan Johnson, will launch a consultation tomorrow on a new points-based system for would-be migrants according to their behaviour, as well as skills and qualifications.

Mr Johnson, writing in the News of the World, said: "Bad behaviour will be penalised, and only those with enough points will earn the right to a British passport."

While he did not explicitly point to those who take part in anti-war demonstrations, the newspaper reported that this would be included in examples of "bad behaviour".

But there was confusion over the policy last night, as the Home Office appeared to backtrack on whether protesters would be penalised.

An aide to Mr Johnson said the Home Office was consulting on what constituted bad behaviour, but refused to comment on the issue of protesters. More