6.—(1) On the application of the offender or of the supervising officer in relation to a supervised activity order, the appropriate court may—
(a)extend, in relation to the order, the period of 12 months specified in paragraph 4(2);
(b)subject to Article 45(3) and paragraph 2(3), vary the number of hours specified in the order;
(c)revoke the order; or
(d)revoke the order and impose such period of imprisonment not exceeding—
(i)in the case of the Crown Court, 30 days; and
(ii)in the case of a magistrates' court, 20 days,
as the court considers appropriate.
(2) If—
(a)the appropriate court is satisfied that the offender proposes to reside in another petty sessions district instead of the petty sessions district for the time being specified under paragraph 2(1) or that such a change of residence has taken place; and
(b)the court has been notified by the Secretary of State that arrangements exist for persons who reside in the other petty sessions district to carry out instructions under supervised activity orders; and
(c)it appears to the court that provision can be made under those arrangements for the offender to carry out instructions under the order,
the court may, and on application of the supervising officer shall, amend the order by substituting the other petty sessions district for the district specified in the order; and this Schedule shall apply to the order as amended
(3) Where the court proposes to exercise its powers under sub-paragraph (1)(a), (b) or (d) otherwise than on the application of the offender, the court—
(a)shall summon the offender to appear before the court, and
(b)if the offender does not appear in answer to the summons, may issue a warrant for the offender’s arrest.
(4) If the appropriate court is a magistrates' court and it amends or revokes an order, the court shall as soon as practicable—
(a)if the court amends the order by substituting a new petty sessions district for the district specified in the order, send to the clerk of petty sessions for the new petty sessions district—
(i)a copy of the amending order; and
(ii)such documents and information relating to the case as the court considers likely to be of assistance to a court acting for the new petty sessions district in exercising its functions in relation to the order;
(b)if the court amends the order in any other manner, give a copy of the amending order to the supervising officer;
(5) In a case falling within sub-paragraph (4)(a), the clerk of petty sessions for the new petty sessions district shall give a copy of the amending order to the supervising officer.