Persons liable to removal from the United Kingdom
33. The coming into force of section 260 of the 2003 Act, and the repeal of sections 46 to 46B of the 1991 Act, is of no effect in relation to a prisoner liable to removal from the United Kingdom, if the requisite custodial period referred to in section 260(1) relates to a sentence of imprisonment imposed in respect of an offence committed before 4th April 2005.