
The author presents issues related to the police detention of the perpetrator of domestic violence, referred to in Art. 15a of the Police Act after its amendment in 2020. The author analyzes the structure and nature of the substantive premise justifying the actual Police Act consisting in a short-term deprivation of liberty of the perpetrator of domestic violence in order to isolate the perpetrator from
victims. Subsequently, the author examines the evidence elements of this premise, such as the fact of domestic violence and a direct threat to human life as well as
the assessment of the risk of threat to human life or health in order to determine the legitimacy of detention.