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This paper introduces GEMCo, a validated proxy for inaccessible counselling data, consisting of 86 expert-authored German e-mail conversations. The study compares GEMCo against a reference set of 124 real counselling sessions, revealing a small but detectable gap in counsellor strategies and client emotions. By ensuring ethical considerations and privacy, GEMCo serves as a pioneering resource for language research in sensitive domains where real data cannot be shared.
A validated proxy for counselling data that can be ethically released opens new avenues for research while preserving privacy.
This paper presents GEMCo, a releasable, human-written proxy for inaccessible counselling data: 86 complete German e-mail counselling conversations (728 messages), expert-authored cases and counsellor sessions with trained role-players. It is validated against a held-out reference of 124 real counselling conversations. The proxy and the real conversations are measured against each other in counsellor strategies and client emotions. The gap is detectable but small. A generative validation supports the analysis. The validation method itself generalises to any domain where real data cannot be shared but a human-made proxy can. Privacy and ethics keep real counselling data closed. GEMCo carries none by design and can be released -- a first step toward language research in this domain.