Law Firm — Geneva

Law firm based in Geneva

High-stakes situations. Clear answers.

Criminal Law · Technologies & Web3 · Business & M&A · Litigation.

A firm built on rigor, discretion, and a results-oriented approach.

Mandates in Switzerland and abroad.

Urgent situation — advice, criminal proceedings, legal action, data breach 022 512 76 00
Urgent criminal intervention

Criminal & economic law.
Every hour counts.

Criminal defense for victims and accused persons, white-collar crime, fraud, cybercrime and scams: expertise that combines criminal-law rigor with, where needed, command of digital and financial environments.

Police custody Criminal Defense Financial fraud Crypto scam Money laundering Cybercrime Criminal procedure
Criminal law
Case studies

"Victims of a multi-million international fraud. Coordination with Swiss and foreign authorities, criminal proceedings initiated, and financial flow analysis of suspected entities."

"Summoned to the Public Prosecutor's Office for the following morning. Defense strategy established prior to this first hearing."

"Accused of assault. After several hearings, a dismissal order was issued by the Public Prosecutor's Office."

Me Matthias Traussnig Criminal Defense Attorney — Geneva Bar
Former experience at the Public Prosecutor's Office of the Canton of Geneva
Lay Judge at the Criminal Appeals and Review Chamber
CAS Digital Finance Law — University of Geneva
Other practice areas

Business, Technology and Litigation

Context

High-stakes situations,
results to achieve

Whether it is a criminal proceeding, a strategic acquisition, a blockchain project, or a commercial dispute — what unites our clients is the importance of the stakes and the demand for results.

Results as the objective →
Individuals in sensitive situations

Criminal charges, police custody, victim of fraud or crypto scams, inheritance or asset disputes.

Executives & entrepreneurs

Regulatory crisis, white-collar criminal proceedings, strategic commercial litigation, restructuring under pressure.

Investors & funds

M&A due diligence, shareholders' agreements, investor litigation, cross-border structuring.

Tech, Web3 & innovation players

Start-ups, blockchain projects, fundraising, FINMA compliance, tokenization structuring.

Our approach

Four steps,
controlled execution

Analysis

Comprehensive assessment: legal, economic, and operational stakes. Identification of risks and levers for action.

Strategy

Several options exist. We build the most appropriate strategy, aligned with your objectives and clearly explained.

Execution

Precise and controlled implementation. Coordination and monitoring of actions in close collaboration with you.

Reactivity

Continuous follow-up. Adjustments if necessary. Action on new developments until the matter is resolved.

The premises

Our offices on the lake

A period building on Quai Gustave-Ador, a discreet entrance, a meeting room where a case gets the time it deserves.

Entrance of the building, Quai Gustave-Ador
The meeting room at dusk, fireplace and mirror facing the harbour
Quai Gustave-Ador 14, 1207 Genève By appointment · 022 512 76 00
The Firm

Matthias Traussnig and Aurélien Rocher

Two attorneys, one objective

Team →
Matthias Traussnig, attorney at the Geneva Bar, founder of Sentinel Legal

Matthias Traussnig

Attorney — Geneva Bar, Switzerland FR · EN · DE · Criminal · Web3 · Digital Finance

Specializes in criminal law, technology law and business law. Previously with the Geneva Public Prosecutor’s Office. CAS Digital Finance Law (UNIGE). Cardano Blockchain Certified Associate.

Aurélien Rocher, attorney at the Lyon Bar, Dr. iur., working with Sentinel Legal

Aurélien Rocher

Attorney, Dr. iur. — Lyon Bar FR · EN · DE · Technology Law · Corporate Law

Attorney admitted to the Lyon Bar, Doctor of Law. He works in collaboration with Sentinel Legal on cross-border France–Switzerland matters, in technology and corporate law.

Initial contact

Informed intervention
can change the outcome of a dispute.

022 512 76 00 Geneva · Français, English, Deutsch Schedule a consultation