1. Legal Framework Governing Electronic Trust Records in Switzerland

(A) Swiss Civil Code (Inheritance Law)

Key principles:

• Wills must comply with strict formal requirements:
  • Holographic will: fully handwritten, signed, dated
  • Public will: notarised
• Oral or electronic wills are generally invalid

👉 Therefore, electronic trust records cannot replace a will, but may be used as:

• Evidence of intent
• Evidence of fraud or coercion
• Supporting material in disputes over validity

(B) Swiss Code of Civil Procedure (Evidence Rules)

Swiss courts allow:

• Emails
• Electronic documents
• Digital signatures
• Metadata (timestamps, IP logs)

as free evidence, subject to judicial evaluation of authenticity and reliability.

(C) Swiss Federal Act on Electronic Signatures (ZertES)

Recognises:

• Qualified electronic signatures (QES)
• Secure digital identification mechanisms

However:
👉 Even a valid electronic signature does NOT automatically satisfy inheritance form requirements.

2. Role of Electronic Trust Records in Probate Disputes

Electronic trust records are typically used to prove:

(A) Testamentary intent

Emails or messages indicating how the deceased wanted assets distributed.

(B) Undue influence or fraud

Digital communications showing coercion or manipulation.

(C) Authenticity of handwritten wills

Metadata or scanned copies used to verify origin.

(D) Asset tracing

Digital banking records, crypto wallets, and online transactions.

3. Key Swiss Case Law Principles (Federal Supreme Court Jurisprudence)

Below are six leading Swiss Federal Supreme Court (Bundesgericht) jurisprudential principles relevant to electronic trust records in probate disputes.

1. Strict Formal Validity of Wills vs Electronic Evidence Principle

Principle Established:

The Federal Supreme Court consistently holds that:

• A will is invalid if not in statutory form
• Electronic communications cannot substitute formal testamentary acts

Application:

Even if emails clearly show intent, they cannot override formal requirements.

👉 Key takeaway:
Electronic trust records are admissible only as evidence, not as a will substitute.

2. Electronic Records as Supplementary Evidence of Testamentary Intent

Principle:

Swiss courts accept electronic communications (emails, SMS, messaging apps) as:

• Supporting evidence of intent
• Contextual interpretation tools

Application in probate disputes:

Where a valid will exists but is ambiguous, courts may use emails to interpret:

• Beneficiary intent
• Asset distribution logic

👉 Key takeaway:
Electronic records can clarify meaning but not create validity.

3. Authentication Requirement for Digital Evidence (Burden of Proof Principle)

Principle:

The party relying on electronic trust records must prove:

• Integrity of the data
• Identity of the sender
• No tampering or alteration

Application:

In inheritance disputes involving emails or digital notes:

• Courts scrutinise metadata, device origin, and consistency
• Unverified screenshots are often rejected

👉 Key takeaway:
Electronic evidence is only as strong as its authentication.

4. Fraud and Manipulation of Digital Estate Records

Principle:

Swiss courts treat digital manipulation of inheritance-related records as:

• Civil fraud (deceit under Swiss Code of Obligations)
• Grounds for invalidating reliance on such records

Application:

If heirs alter or fabricate:

• Emails
• Digital wills
• Cloud documents

courts may impose:

• Civil liability
• Exclusion from inheritance

👉 Key takeaway:
Digital tampering in probate cases is treated very seriously.

5. Electronic Communication as Evidence of Undue Influence

Principle:

Federal Supreme Court jurisprudence recognises that:

• Emails, chats, and messages can prove coercion or psychological pressure
• Especially relevant in elderly testator cases

Application:

Courts assess:

• Frequency of messaging
• Pressure patterns
• Dependency relationships

👉 Key takeaway:
Electronic communication is powerful evidence in undue influence claims.

6. Reliability of Electronic Records Depends on System Integrity

Principle:

Courts evaluate whether electronic trust records come from:

• Secure systems (banks, regulated platforms)
• Personal devices with tamper risk

Application:

Higher probative value is given to:

• Bank-issued digital statements
• Notarised electronic records under ZertES

Lower value:

• Screenshots
• Edited documents
• Unverified cloud files

👉 Key takeaway:
System trustworthiness determines evidentiary weight.

4. Practical Applications in Swiss Probate Disputes

(A) Digital Wills and Emails

Even if a deceased person wrote:

“I want my estate divided equally among my children”

in an email, Swiss courts will generally rule:

• Not a valid will
• May indicate intent but not legally binding

(B) Blockchain and Crypto Assets

Swiss courts increasingly deal with:

• Crypto wallets in estates
• Blockchain transaction histories

These are accepted as:

• Asset evidence
• Not testamentary instruments

(C) Cloud Storage Documents

Google Drive or similar documents:

• Not valid wills unless formally executed
• May serve as supporting evidence of intention

5. Key Legal Principles Summarised

Swiss probate law adopts a dual approach:

Strict Formalism (for validity)

• Only handwritten or notarised wills are valid

Flexible Evidentiary Approach (for interpretation)

• Electronic records are admissible to:
  • Clarify intent
  • Prove fraud
  • Establish undue influence

Conclusion

In Switzerland, electronic trust records play an important but strictly limited role in probate disputes. While courts are technologically receptive and allow digital evidence, they firmly uphold the formal validity requirements of wills under the Swiss Civil Code.

The Federal Supreme Court’s jurisprudence consistently reinforces that:

Electronic records can support or challenge inheritance claims—but cannot replace legally required testamentary forms.

This creates a clear legal boundary between digital evidence as proof and formal acts as validity requirements.