[Everyday transgressions of borderlines: the scandalization of clinical drug trials of the psychiatrist Roland Kuhn].

"Experimental case Münsterlingen: clinical trials in psychiatry, 1940-1980" is the name of the report of a control commission established by the government of the Swiss Canton Thurgau in 2016, after several articles in the press after 2012 had criticized the drug tests carried out by Roland Kuhn, the former clinical director of the cantonal mental hospital in Münsterlingen. The report discusses "fine discrepancies in everyday borderline transgressions" "from today's viewpoint". These borderline transgressions were seen especially in the missing, inadequate or undocumented informed consent of patients and in the usage of test substances, which varied between the (mostly) accepted or not refused intake and the camouflaged or (seldom) threatened application via injection. Thus, the report shows on the one hand, the considerable development of the normative context of treatment of mentally ill patients in the past 70 years and on the other hand, with its detailed descriptions, it can sensitize today's therapists to the pertinent context. But most of all this is the story of Roland Kuhn, the responsible psychiatrist and the drug testing discoverer of the antidepressive effect of imipramine. This story of the discovery is judged from very differing perspectives and is thus relativized, all the way from observations of a "provincial psychiatrist" to consideration for the Nobel Prize. At the same time critically evaluated traits of Kuhn's personality seem to have influenced the occasionally negative comments of the commission report. We should recognize, however, that with his qualitative and psychopathological individual case observations, Kuhn discovered the antidepressive effect of a test substance that as a hypothesis was verified by subsequent quantitative and statistical methods.