(1)An undertaking given under section 25(2)(a) expires—
(a)at the end of the day on which the person who gave it is required by its terms to appear at a court, or
(b)if subsection (2) applies, at the end of the day on which the person who gave it is brought before a court having been arrested under the warrant mentioned in that subsection.
(2)This subsection applies where—
(a)a person fails to appear at court as required by the terms of an undertaking given under section 25(2)(a), and
(b)on account of that failure, a warrant for the person’s arrest is granted.
(3)The references in subsections (1)(a) and (2)(a) to the terms of the undertaking are to the terms of the undertaking subject to any modification by notice under section 27(1).