“The making of a deportation order automatically invalidated a grant of indefinite leave to remain. Revocation of the deportation order would revive the indefinite leave to remain, but in the case of a foreign criminal who could not be deported for legal reasons, the Secretary of State had power to revoke leave under section 76 of the Nationality, Asylum and Immigration Act 2002.”
WLR Daily, 23rd October 2012
Source: www.iclr.co.uk
