BackgroundThe use of involuntary admission in psychiatry may be necessary to enable treatment and prevent harm, yet remains controversial. Mental health laws in high-income countries typically permit coercive treatment of persons with mental disorders to restore health or prevent future harm. Criteria intended to regulate practice leave scope for discretion. The values and beliefs of staff may become a determinating factor for decisions. Previous research has only to a limited degree addressed how legal criteria for involuntary psychiatric admission are interpreted by clinical decision-makers. We examined clinicians’ interpretations of criteria for involuntary admission under the Norwegian Mental Health Care Act. This act applies a status approach, whereby involuntary admission can be used at the presence of mental disorder and need for treatment or perceived risk to the patient or others. Further, best interest assessments carry a large justificatory burden and open for a range of extra-legislative factors to be considered.MethodsDeductive thematic analysis was used. Three ideal types of attitudes-to-coercion were developed, denoted paternalistic, deliberative and interpretive. Semi-structured, in-depth interviews with 10 Norwegian clinicians with experience from admissions to psychiatric care were carried out. Data was fit into the preconceived analytical frame. We hypothesised that the data would mirror the recent shift from paternalism towards a more human rights focused approach in modern mental health care.ResultsThe paternalistic perspective was, however, clearly expressed in the data. Involuntary admission was considered to be in the patient’s best interest, and patients suffering from serious mental disorder were assumed to lack decision-making capacity. In addition to assessment of need, outcome effectiveness and risk of harm, extra-legislative factors such as patients’ functioning, experience, resistance, networks, and follow-up options were told to influence decisions. Variation in how these multiple factors were taken into consideration was found. Some of the participants’ statements could be attributed to the deliberative perspective, most of which concerned participants’ beliefs about an ideal decision-making situation.ConclusionsOur data suggest how a deliberative-oriented ideal of reasoning about legal criteria for involuntary admission lapses into paternalism in clinical decision-making. Supplementary professional guidelines should be developed.