Practice Relating to Rule 161. International Cooperation in Criminal Proceedings
Section C. Extradition of own nationals
Switzerland’s Federal Act on International Mutual Assistance (1981), as amended to 2010, states:
1. No Swiss national may, without his written consent, be extradited or surrendered to a foreign State for prosecution or for the execution of a sentence. Consent may be withdrawn up to the time when the surrender is ordered.
2. Paragraph 1 does not apply to transit or return of a Swiss national who is temporarily surrendered by a third State to the Swiss authorities.