In France, the COVID 19 epidemic period led from 16 March to 11 May 2020 to restrict the right of movement of individuals . In order to respect democratic procedures, a state of health emergency was declared, allowing transitional laws to be introduced under the control of parliament . Regardless of their health effectiveness in the spread of the virus, these measures revealed very restrictive situations for residents of medical and social institutions, especially elderly . Paradoxically, among the procedures designed to release lockdown of the population, electronic surveillance solutions have been put forward without even debating their attendant constraints and risks . These two aspects of the health crisis that are briefly related here.