Yes, there are several international conventions to which Switzerland is a party and which allow a person convicted in Switzerland to execute the sentence in his country of origin.
The Convention of 21 March 1983 on the Transfer of Persons in Custody and its protocols come to mind. This convention has been signed by the following countries and can therefore be applied when the convicted person is a national of one of these countries: Albania, Andorra, Armenia, Australia, Austria, Azerbaijan, Bahamas, Belgium, Bolivia, Bosnia and Herzegovina, Bulgaria, Canada, Chile, Costa Rica, Croatia, Cyprus, Denmark, Faroe Islands, Ecuador, Estonia, Finland, France, Georgia, Germany, Ghana, Greece, Honduras, Hungary, Poland, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Switzerland, United Kingdom, United States, Finland, France, Georgia, Ghana, Greece, Honduras, Hungary, Iceland, India, Ireland, Israel, Italy, Japan, Latvia, Liechtenstein, Lithuania, Luxembourg, Northern Macedonia, Malta, Mauritius, Mexico, Moldova, Mongolia, Montenegro, Norway, Panama, the Netherlands, Aruba, Curaçao the Netherlands, Aruba, Curaçao, the Caribbean Part (Bonaire, Sint Eustatius and Saba), Sint, Poland, Portugal, the Czech Republic, Romania, the United Kingdom, Akrotiri and Dhekelia, Anguilla, Bermuda, Gibraltar, the Isle of Man, the Cayman Islands, the Falkland Islands, the Pitcairn Islands (Ducie, Oeno, Henderson and Pitcairn) British Virgin Islands, Montserrat, St. Helena and Dependencies (Ascension and Tristan da Cunha), British Indian Ocean Territory, Russia, San Marino, Holy See, Serbia, Slovakia, Slovenia, Sweden, Tonga, Trinidad and Tobago, Turkey, Ukraine and Venezuela.
But Switzerland has also concluded and ratifiedother bilateral agreements concerning the transfer of sentenced persons with the following countries: Barbados, the Republic of Cuba, the Dominican Republic, Kosovo, the Kingdom of Morocco, the Republic of Paraguay and the Republic of Peru.
