When an impartial witness is used
Conditional. Use an impartial witness when the person giving informed consent is unable to write. Article 29 allows consent to be given and recorded through appropriate alternative means in the presence of at least one impartial witness.
Do not use the witness route simply because a participant does not speak German. A planned non-German-speaking participant requires certified participant-facing translations into a language they understand. Translation need and inability to write are different issues.
Do not use a witness as a substitute for a legally designated representative when the participant lacks decision-making capacity. The Austria limited-capacity and legal-representative guide covers that separate pathway.
Witness eligibility
Mandatory. The witness must be impartial. The CTR does not add a detailed EU professional qualification list and the current Austrian national CTR guidance reviewed for this guide does not publish additional witness eligibility criteria.
The Part II procedure should therefore state how the sponsor or site ensures impartiality and how the witness is selected. Avoid a procedure that depends on a person whose role creates an obvious conflict with independent observation of the consent process.
Where a site has an internal policy on witness selection, align the operational procedure with that policy without presenting the local institutional rule as a national Austrian requirement.
Part II documents and procedure description
Mandatory if the witness pathway may be used. Annex I Section L of the CTR requires information on the reason for using an impartial witness, the selection of the witness and the procedure for obtaining consent.
The participant still receives the standard Austrian information required for their population. The consent document or consent record should contain the witness signature and date fields needed for the approved procedure. The witness does not replace the person conducting the consent interview.
All participant-facing documents in Austria are German. Add certified translations when a planned participant does not sufficiently understand German.
Signature logic
Article 29 requires the witness to sign and date the informed-consent document when the alternative means pathway is used. The person conducting the consent interview also signs and dates the consent record.
The participant or representative gives the consent through the approved alternative means. The record should make clear how that consent was expressed and that the witness was present.
The Austrian national requirements portal states that informed consent uses wet ink or qualified electronic signature. Build the witness signature field and process around the approved Austrian signature method rather than treating a basic electronic signature as equivalent.
What the witness attests to
The witness role is to support the documented consent process when the consenting person cannot write. The approved procedure should allow the witness to attest that the information was provided, the participant or representative expressed consent through the alternative means and the witness observed the process.
Do not give the witness authority to make the participation decision. The decision remains that of the participant or legally designated representative.
Document handover
The participant or representative must receive a copy of the document or record by which informed consent was given. Make sure the copy includes the completed witness documentation that forms part of the consent record.
Use the Austria patient-facing document QC checklist to check that witness language, signature fields and version information remain consistent with the standard ICF.
Prepare the full Austria package in minutes
Official sources and resources
- EUR-Lex, Regulation (EU) No 536/2014, Article 29 informed consent and Annex I Section L witness procedure requirements
- AustrianEthics, Application requirements, Austrian ICF and language requirements
- BASG, National rules and regulations, participant-facing language and national ICF requirements
- Austrian national Informed Consent template, official DOCX
- Austrian national CTR requirements portal, informed-consent signature rule
- European Commission, EudraLex Volume 10, current Part II informed-consent procedure template
Last reviewed: 24 August 2026