Switzerland Extradition Law — Case Law, Legal Framework and Procedure

Extradition cases involving Switzerland — Requested and Requesting State

🇨🇭

Switzerland

Switzerland Extradition Law & Case Law — 18 cases

1
As requested
state
17
As requesting
state
Case Law
Extradition bail conditions partially relaxed while core safeguards remained necessary due to flight risk
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Summary
The applicant sought a variation of bail conditions imposed during pending extradition proceedings arising from allegations that she had removed her child from Switzerland to The Bahamas contrary to Swiss custody arrangements. The Court held that bail conditions must secure attendance and protect the administration of justice, but must not be more onerous than reasonably necessary. In light of the applicant’s compliance, employment and community ties, and the practical hardship caused by the existing curfew, the Court reduced the reporting requirement and extended the curfew. It nevertheless maintained electronic monitoring, surrender of travel documents, the restriction on leaving New Providence and the existing bail amount because the flight risk remained substantial.
09/06/2026 · Supreme Court of The Bahamas · CRI/BAL/00030/2025
🇧🇸Bahamas → 🇨🇭Switzerland
Decision on precautionary measureExtradition
Precautionary custody in extradition: flight risk and adequacy of the measure require effective assessment and reasoning
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Summary
The case concerned a requested person subject to an extradition request from Switzerland for drug trafficking and aggravated money laundering. The Court of Appeal of Ancona had ordered pre-trial custody in prison, relying essentially on the seriousness of the alleged offences and on a presumed flight risk. The appellant challenged the order, arguing that the court had failed to provide concrete reasons for the existence of a flight risk and had not assessed the adequacy of the custodial measure, including in light of her personal and family circumstances. The Supreme Court of Cassation held that precautionary measures must remain adequate and proportionate throughout their application and that the lower court’s reasoning was merely assertive and silent on adequacy. It therefore annulled the order and remanded the case to the Court of Appeal of Ancona for a new assessment, including possible substitution with house arrest.
01/04/2026 · Italian Supreme Court · 25407/2026
🇮🇹Italy → 🇨🇭Switzerland
Decision on precautionary measureExtradition
Extradition and non-recognition of pre-trial detention served abroad by the requested person in connection with the same extradition request
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Summary
Extradition and non-recognition of pre-trial detention served abroad by the requested person in connection with the same extradition request: in Italy it is not possible to aggregate periods of detention served abroad pursuant to a decision of a foreign judicial authority; any such claim must instead be raised before the requesting authority that sought extradition from Italy (should the requested person be extradited).
21/01/2026 · 3940/2026
🇮🇹Italy → 🇨🇭Switzerland
GrantedExtradition
Reversal and remand from the Supreme Court and continuation of the precautionary measure
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Summary
The annulment with remittal (reversal and remand) of the judgment deciding on the extradition request does not directly affect the custodial measure ordered in connection with it, given the autonomy between those decisions, as confirmed by Article 714(4) of the Italian Code of Criminal Procedure, which provides for a time limit on the duration of the measure linked to the completion of the extradition proceedings.
21/03/2019 · Italian Supreme Court · 17992/2019
🇮🇹Italy → 🇨🇭Switzerland
Decision on precautionary measureExtradition
Country Contributor
Philippe Vladimir Boss
MLL Legal
Philippe Vladimir Boss’ practice focuses on investigations in criminal, internal and administrative matters, as well as the corresponding litigation, in financial, commercial, personal or reputational aspects of business. Clients range from financial institutions, commodity trading companies, SME in various sectors and private individuals, He also advises sport governing bodies in ethics, disciplinary or governance matters.
Philippe Boss’ expertise covers white-collar crime prosecution and defense, freezing of assets, asset tracing, international assistance in criminal, administrative and civil matters, assistance to plaintiffs, witnesses and targeted individuals in hearings, forensic searches, internal hearings, commercial litigation and arbitration, governance advice, ethics and disciplinary proceedings, enforcement of foreign awards, protection of media reputation and crisis management.
He is member of International Shooting Sport Federation Integrity Unit: Adjudicatory Board; Juge suppléant au Tribunal neutre du canton de Vaud; Chairman of the Independent Monitoring Group, International Weightlifting Federation (IWF); Arbitrator and mediator of the Sport Resolution’s International Panel; Chairman within the Arbitral Tribunal of the Self-regulatory Organisation of the Swiss Federation of Lawyers and the Swiss Federation of Notaries; Board member of the Tennis-Club Stade-Lausanne; Board member of the Vaud Bar Association (2022-2025).
Country Contributor
Loris Baumgartner
Wenger Vieli
Senior Associate at Wenger Vieli, Loris Baumgartner represents and advises individuals and companies in proceedings before judicial and regulatory authorities.
As a criminal defense attorney, he focuses particularly on representing parties before law enforcement agencies.
Loris Baumgartner also regularly advises clients on the preparation, execution, and follow-up of internal and regulatory investigations.
He is currently writing his doctoral dissertation in the field of corruption law.
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