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ARTICLE · 30 JULY 2026

Part III: Tools For Internal Investigations I: Employee Interviews

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German employment law requires employees to cooperate with internal investigations through fact-finding interviews, but this duty operates within strict boundaries of fairness, proportionality, and whistleblower protection. Organizations must balance their need to secure facts quickly with procedural safeguards including corporate counsel warnings, neutral questioning, representation rights, and compliance with the Whistleblower Protection Act's confidentiality and anti-retaliation requirements.

GermanyEmployment and HR
Pauline Stadler
Pauline Stadler
Vanessa Klesy
Vanessa Klesy
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Effective employee interviews are a cornerstone of credible internal investigations. Companies need a defensible method to secure facts quickly, fairly, and in a way that holds up with courts, regulators, works councils, and other legal regimes. There are limits where interviews risk self-incrimination, but criminal procedure protections do not automatically apply to employer-led interviews. Interview practice must preserve impartiality, respect representation rights in defined situations, and honor the confidentiality and anti-retaliation obligations under the Whistleblower Protection Act (Hinweisgeberschutzgesetz – HinSchG).

This Part III of our Briefing Series explains when and how employees must cooperate, how to plan and conduct interviews, who may attend and on what terms, and the specific effects of the HinSchG on interview handling; see Part IV for data screening and Part V for data processing. The core anchors are a clear duty to cooperate, careful fairness, and strict HinS

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