Have a look at LASORS section G1.5 . You can download LASORS from
http://www.caa.co.uk/publications/pu...ls.asp?id=1191 .
"Different terms apply to ATPL(A) holders with a minimum of 3,000 hours flying experience as pilot of public transport aircraft over 30,000kgs MTWA on scheduled international or similar routes, including a minimum of 1,500 hours as Pilot-in-Command (Captain).
Applicants who believe they qualify should apply to PLD for a formal written assessment using form JAR-FCL 680 and enclosing the appropriate fee, actual logbooks and non-UK licence (with validating medical certificate if separate).
The holder of a current and valid ATPL(A) who does not meet the experience requirements for the grant of a JAR-FCL ATPL(A) can still apply for a JAR-FCL CPL(A)/IR. Details can be found in Section D1.5."