Burden of Proof in Investigations: Why a Signature Is Not Enough in Liability Cases
A liability claim rarely reaches a hospital on the day of the procedure. It often comes years later: A patient claims she was not informed about a specific complication. The medical record contains a signed informed consent form. For many hospitals, this feels like a safe bet. Legally, however, that is not necessarily the case—and the reason lies in a question that is asked far too rarely in everyday hospital practice: In the event of a dispute, who actually has to prove what?
The burden of proof lies with the treating party
The answer is laid out in the law and is clearer than many might expect. According to Section 630h(2) of the German Civil Code (BGB), the treating party must prove that it obtained consent in accordance with Section 630d BGB and provided the necessary information in accordance with the requirements of Section 630e BGB. The burden of proof therefore does not lie with the patient who alleges a lack of informed consent—it lies with the clinic, which must prove the contrary.
This reverses the intuitive expectation. It is not the patient who must prove that she was not informed. The hospital must prove that it did so properly. If the clinic fails to provide this proof, the case will ultimately be treated as if no effective informed consent had taken place—with the corresponding liability consequences. Anyone wishing to learn more about the details of the duty to provide informed consent can find them in the legal principles governing Patient Education.
A similar principle applies in Austria: According to established case law of the Supreme Court, the burden of proof lies with the treating party to demonstrate that the patient was properly informed or that the patient would have consented even if she had been sufficiently informed — as can be seen, for example, in the Supreme Court’s decision on the duty to inform in the case of a minor patient. The details differ from the German regulations, but the basic logic is the same — for more on this, see the article on informed consent in Austria.
What a Signature Proves — and What It Doesn’t
A signed consent form serves as proof. However, it attests to a narrower set of facts than is often assumed: that a document was presented and signed. It does not, in and of itself, prove,
- that the patient has understood the specific risks relevant to her case,
- that there was sufficient time between the consultation and the procedure,
- that there was an opportunity to ask questions and that participants were able to take advantage of it,
- or that a face-to-face conversation even took place.
This is precisely where issues with informed consent forms arise in practice. A standard form that looks identical for every patient is structurally at a disadvantage here: It documents the result (a signature), not the process (an individualized explanation). Why standardized documents pose a risk of their own in this context is the subject of the article on generic informed consent forms as a liability risk.
Important—and this is part of providing an honest explanation: No digital process can replace the physician’s informed consent discussion. According to Section 630e(2)(1) of the German Civil Code (BGB), the mandatory, in-person discussion remains a core element of the informed consent process. Digital tools can be used to prepare for, structure, and document this consultation—but they do not replace it. Any provider who promises otherwise misunderstands the legal situation.
What courts actually value: the transparency of the process
In legal practice, it is rarely a single document that matters on its own; rather, it is the plausibility and transparency of the entire investigation process. The more completely it is possible to reconstruct what happened and when, the stronger the hospital’s position will be.
Paper-based processes reach their limits here. They capture a final state—the completed, signed form. The process leading up to that point remains undocumented: what information the patient saw, for how long, whether she scrolled back or asked questions, and exactly when she signed. This information simply does not exist in the paper-based process.
The Consent Trail: Document the Process, Not Just the Result
This is where the real difference between digital processes lies—and it directly affects the issue of evidence. A consent trail—the complete, audit-proof documentation of all steps in the consent process—records not only the signature but also the path leading up to it: which consent information was viewed and when, which sections were revisited, which questions were asked, and when the consent was signed.
Medudoc adds a medical component: Using digital annotation, doctors can supplement the Informed Consent Sheet (IC Sheet)—the patient-specific, electronically signed informed consent document—before it is signed, thereby documenting the individualized, case-specific informed consent process. The IC Sheet itself is archived in an audit-proof PDF/A format. This creates exactly what the burden of proof requires: a traceable process rather than an isolated signature sheet. How these patient-specific digital informed consent forms are created is described in detail elsewhere.
Here, too, the following straightforward assessment applies: A consent trail is a tool for documenting consent, not a guarantee against liability. It significantly strengthens the evidence because it makes it possible to reconstruct the process—but medical responsibility and the conduct of the informed consent discussion remain with the healthcare provider. Digital documentation is no substitute for thorough informed consent; it makes thorough informed consent verifiable.
What a robust procedure should be able to reconstruct
As a practical guideline for evaluating a solution—regardless of the provider—it should be possible to reconstruct the following in the event of a dispute:
- What information the patient viewed (and that this information was relevant to her specific procedure).
- When the informed consent was obtained—with a reliable timestamp, particularly regarding the time interval between the informed consent and the procedure.
- Whether and how there was an opportunity to ask questions.
- The article on which type of electronic signature is legally valid for surgical consent forms discusses who has signed and the quality of the signature—specifically, which eIDAS level is appropriate in this context.
- That the document could not be altered retroactively without being noticed (audit-proof).
A procedure that can fully substantiate these five points addresses the burden of proof where it is ultimately decided in the event of an emergency.
FAQ
This article provides general professional guidance and is not a substitute for individual legal advice in specific cases. Do you have questions about how to document your consent process in a legally compliant manner? Talk to us.
