“…People who need substantial change and development to manage their everyday lives and overcome the psychosocial consequences of SUD, often require specialised inpatient treatment [ 24 , 25 , 26 , 27 ]. People with SUD have long been the subject of controlling measures in society in general, and in SUD treatment in particular [ 28 , 29 ], and the environment at the services to which people refer to undergo vast change processes, such as inpatient SUD treatment, is tightly controlled [ 30 ]. The treatment practice and the service staff that undertake it perform an essential function in, and exert a profound influence on, inpatients’ everyday lives and their change processes [ 30 ].…”