(1) If a sentence of imprisonment is served prior to a custodial measure ordered for the same offence or offences, and, before the sentence has been served, the required review shows that

1.  the purpose of the measure no longer requires its enforcement, or

2.  that the detention for the purposes of incapacitation order would be disproportionate because the offender was not, in an overall evaluation of the course of the prison sentence served, offered sufficient care within the meaning of section 66c(2) in conjunction with section 66c(1) No 1,

the court shall suspend the measure for an operational probationary period; the order for suspension shall automatically lead to the person being subject to supervision.The review under the 1st sentence No 1 above is not required if the detention for purposes of incapacitation was ordered by the trial court at first instance less than one year before the end of the term of the prison sentence.

(2) If the custodial measure has not commenced within a period of three years of its order becoming final, and unless a case of subsection (1) above or section 67b exists, the measure must not be enforced unless the court so orders. Time spent by the convicted person in detention by order of a public authority shall not be credited to the period. The court shall order its enforcement if the purpose of the measure still so requires. If the purpose of the measure has not been achieved, yet special circumstances justify the expectation that it may be achieved by a suspension order, the court shall suspend the measure for an operational probationary period; the order for suspension shall automatically lead to the person being subjected to supervision. If the purpose of the measure has been achieved, the court shall declare it terminated.