Regina v Kapoor and others [2012] EWCA Crim 435; [2012] WLR (D) 72
“For the purposes of section 25(1)(2) of the Immigration Act 1971, as substituted, an ‘immigration law’ was a law which determined whether a person was lawfully or unlawfully either entering the United Kingdom, or in transit or being in the United Kingdom and did not include section 2 of the Asylum and Immigration (Treatment of Claimants, etc) Act 2004 which made it an offence for a person not to have with him at a leave or asylum interview an immigration document which was in force and satisfactorily established his identity and nationality or citizenship.”
WLR Daily, 9th March 2012
Source: www.iclr.co.uk