Disputes. Governance.
Law & AI.
Practice
Advice to boards, owners and legal teams on decisions about authority, ownership and responsibility, before commitments become difficult to reverse.
For families, foundations and individuals, the work includes governance, business and asset transactions, and succession. It takes account of the people, relationships and interests behind the legal structure.
Discuss a decisionAdvice and representation in Swiss and cross-border civil and criminal matters, including shareholder and financial disputes, investigations and corporate criminal liability.
An independent review clarifies what a major dispute turns on, what the evidence supports, potential recovery or liability, and the cost of proceeding, funding or settling.
The practice also covers Swiss proceedings involving state action, constitutional and fundamental rights, including questions arising from the environment and emerging technology, with counsel abroad where needed.
I lead the work, select exceptional specialists for each matter and structure our fees to align with the client’s objective.
Investigation, strategy & representationI help legal teams and organisations put AI to work: define a useful task, improve the workflow and keep the knowledge gained available for the next decision.
Define the task and sources before choosing or building an AI system. Establish who may decide, what must be checked, how exceptions are handled and what must be recorded. The organisation retains its knowledge, controls the process and can explain its decisions. Legal agents inside the organisation sets out the operating model. More at Rule & Reason.
Working together on legal AIProfile
Jonas Hertner is an independent Swiss lawyer. For more than a decade, he has worked on Swiss and cross-border matters. He advises directly, provides independent review and works alongside existing counsel. Rule & Reason brings together legal advice, AI implementation and organisational knowledge.
Method
I begin with the client’s objective and remain responsible for the work. The conclusions stay connected to their sources, with uncertainty and the next steps made clear.
| Step | Question |
|---|---|
| Purpose | What must be achieved, decided or protected? |
| Evidence | What is known, uncertain or disputed? |
| Law | What does the law permit, require or restrict? What is at risk? |
| Course | What is the simplest sound response: legal advice or action, a change in practice, a tool or no intervention? |
Notes
Notes on law, artificial intelligence and the decisions that connect them.
Selected note
AI can help a legal team examine more material and test more questions. Its value depends on traceable sources, measured performance and a lawyer prepared to stand behind the result.
Read the notePublic work
These projects and notes make legal sources, practical guidance and working methods available for others to use and examine.
An open, machine-readable corpus of Swiss court decisions and legislation, built for source-linked research.
A practical guide to Swiss corporate governance, organised around the decisions boards face. Jonas Hertner also helps board members develop and use AI tools tailored to their research and decision-making.
A framework for keeping legal knowledge inside the organisation, giving AI agents defined tasks and retaining human responsibility for decisions.
Supporting note: Legal work that stays useful. How sources, checks and decision records can serve the next matter.
Tell me what needs to be achieved, decided or protected.
team@jonashertner.comZurich & Basel
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