Mutual Assistance Act 351.1 If persons are surrendered to Switzerland in accordance with paragraph 1, then unless arrangements to the contrary have been made with the competent authorities of the surrendering State, they may neither be prosecuted nor punished nor extradited to a third State by the Swiss authorities for offences that they committed before their surrender and that were not the subject of their conviction. These effects shall expire ten days after release on parole or final release from the institution. 3 4 The Federal Council shall regulate the details. Section 2 Transfer to a Foreign State Art. 100 Principle Another State may be requested to enforce a Swiss criminal judgment if: a. it is certain to accept the binding force of the judgment in accordance with Article 97, and b. the transfer of enforcement is likely to improve the prospects of the social rehabilitation of the convicted person or if Switzerland cannot obtain his extradition. Art. 101 Conditions for transfer 1 The convicted person who is detained in Switzerland may only be transferred with a view to enforcement of the judgment under Article 100 if he agrees and if the requested State is expected to accept the conditions set by the Federal Office. 2 The convicted person may be transferred without his consent if an international agreement ratified by Switzerland so provides. In this case the conditions and effects of the transfer are regulated exclusively by the said international agreement.142 Art. 102 Effects of transfer If another State enforces the criminal judgment, the Swiss authority shall abandon enforcement provided the requested State has not given notice that it will not conclude it. 1 2 The convicted person may be taken into custody so as to ensure his transfer. 3 Article 89 paragraphs 2 and 3 apply by analogy. Chapter 2 Section 1 Procedure Request Art. 103 Documents In addition to the documents specified in Article 28 paragraph 3, the following shall be enclosed with a request: 142 a. the original or an officially authenticated copy of the judgment with a certificate attesting that it is legally enforceable; b. a certificate attesting the period of detention undergone in the requesting State; Inserted by art. 2 of the FD of 19 Dec. 2003, in force since 1 Oct. 2004 (AS 2004 4161 4162; BBl 2002 4340). 37