Section 4 of the Summary Jurisdiction (Process) Act 1881 (which provides, among other things, for service in England and Wales of Scottish citations or warrants) applies to any citation or warrant issued under paragraph 19(2)(a) or 27(2)(a) or (3) as it applies to a citation or warrant granted under section 134 of the Criminal Procedure (Scotland) Act 1995.

A summons issued by a court in Northern Ireland under paragraph 19(2)(b) or 27(2)(b) may, in such circumstances as may be prescribed by rules of court, be served in England and Wales or Scotland.