Artikel 11

1. If the person sought is being prosecuted or is serving a sentence in the Requested Party for an offence other than that for which extradition is requested, the Requested Party may, after having decided to grant extradition, postpone the surrender until the conclusion of the criminal proceedings or the completion of the sentence. The Requested Party shall inform the Requesting Party of such postponement.
2. However, upon request of the Requesting Party, the Requested Party may, in compliance with its national law, temporarily surrender the person sought to the Requesting Party in order to enable it to carry out of the ongoing criminal proceedings, agreeing together upon the time and modalities of such temporary surrender. The person so surrendered shall be kept in detention while staying in the territory of the Requesting Party and shall be returned to the Requested Party within the agreed time. The time spent in detention shall be calculated for the purposes of the sentence to be served in the Requested Party.
3. In addition to the case provided for in Paragraph 1 of this Article, surrender may be postponed when the transfer, due to the health condition of the person sought, may endanger his or her life.