32. —At any time after the supervision period has commenced the court may, on the application of—

(a) the offender on whom the sentence involving post-release supervision concerned was imposed, or

(b) a probation and welfare officer,

discharge all of the supervision period conditions (and the supervision period shall lapse accordingly) or vary or discharge one or more of those conditions if, having regard to the circumstances which have arisen since the sentence was imposed, it considers—

(i) it would be in the interests of justice to do so, and

(ii) the protection of the public from serious harm from the offender no longer requires that those conditions should continue in force or, as appropriate, that they should continue in force in the form in which they stand at the date of the making of the application.