In the bathroom cameras case, part of the reason the judge granted an injunction against the facility using the cameras was because they didn't help stop unwanted activity (multiple people going into the bathroom at one time). He said: "Although unmonitored cameras may sometimes deter illicit behavior and help with investigations, they do not provide the administrators with immediate alerts concerning patient safety or directly prevent assaults or dangerous acts.
Could people counting analytics have solved this problem? Would there be a way to set cameras to alert when more than one person went in the bathroom at one time?