36.—(1) Where a person is surrendered to the State pursuant to a F139[relevant arrest warrant], then any term of imprisonment that the person is required to serve by virtue of the imposition of a sentence by a court in the State (whether before or after the person's surrender) in respect of the offence specified in that F139[relevant arrest warrant] shall be reduced by an amount equal to any period of time spent by that person in custody or detention in the executing state in contemplation, or in consequence, of the execution of the F139[relevant arrest warrant].

(2) In this section “executing state” means, in relation to a F139[relevant arrest warrant], a Member State (a judicial authority of which has ordered the arrest and surrender to the State, pursuant to the F139[relevant arrest warrant], of a person in respect of whom that warrant was issued).