The Secretary of State must, in the case of a person to whom this subsection applies (see section 2), by notice served on the person revoke the person’s licence.

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Where the Secretary of State is sent by that licensing authority particulars of a notice served on the holder of a licence under a provision of Northern Ireland law corresponding to subsection (1) F9..., he must by notice served on the holder revoke the licence.

A revocation under F3this section shall have effect from a date specified in the notice of revocation which may not be earlier than the date of service of that notice.

In this section references to the revocation of a person’s Northern Ireland licence are references to its revocation as respects Great Britain; and, accordingly, the person ceases to be authorised by virtue of section 109(1) of the Road Traffic Act 1988 to drive in Great Britain a motor vehicle of any class.