Art. 236Accelerated execution of sentences and measures
1 The director of proceedings may authorise the accused to begin a custodial sentence or custodial measure in advance of the anticipated date, provided the status of the proceedings permit this.
2 If the charges have already been filed, the director of proceedings shall consult the public prosecutor.
3 The Confederation and the cantons may provide that the execution of a measure in advance of the anticipated date requires the consent of the authorities responsible for its execution.
4 On admission to a penal institution, the accused begins his or her sentence or measure; from this point the accused is governed by the relevant regime unless this conflicts with the purpose of the accused's remand or preventive detention.