4A.— (1) Notwithstanding section 10, where a member of the Garda Síochána reasonably suspects that a person has failed to return in accordance with section 4(3B) to a Garda Síochána station for the continuation of his or her detention, the member may, for the purpose of the continuation of the detention—

(a) arrest the person without warrant, and

(b) return him or her to the Garda Síochána station specified for the continuation of the detention concerned.

(2) A person who is arrested under this section shall, as soon as practicable, be returned to the Garda Síochána station which is specified for the continuation of his or her detention.

(3) Where a person is returned to a Garda Síochána station under subsection (2), the period of time commencing on his or her arrest and ending on his or her arrival to the Garda Síochána station concerned shall be excluded in reckoning a period of detention permitted under section 4.]