18.—(1) On the making under this Part of an order amending a relevant order F1, the clerk to the court shall forthwith—N.I.
(a)if the order amends the relevant order otherwise than by substituting a new petty sessions district or a new place for the one specified in the relevant order, give copies of the amending order to the responsible officer;
(b)if the order amends the relevant order in the manner excepted by paragraph (a), send to the clerk of petty sessions for the new petty sessions district—
(i)copies of the amending order; and
(ii)such documents and information relating to the case as he considers likely to be of assistance to a court acting for that district in exercising its functions in relation to the order;
and in a case falling within paragraph (b) the clerk of petty sessions for that district shall give copies of the amending order to the responsible officer.
F1(2) A responsible officer to whom in accordance with sub-paragraph (1) F1copies of an order are given shall give a copy to the offender and to the person in charge of any institution in which the offender is or was required by the order to reside.
(3) Where a probation order is in force in respect of an offender under the age of 21 years who is subsequently committed toF2 a[F3 juvenile justice centre under the Criminal Justice (Children) (Northern Ireland) Order 1998] or to a young offenders centre, the probation officer who supervises the case shall send such documents and information relating to the case as he considers likely to be of assistance toF2 the[F3 managers of the juvenile justice centre] or, as the case may be, the governor of the young offenders centre.