Trying to find legit sources on this is far tougher than it should be. This is the SCOTUS decision about police, their only job is to enforce the law: https://en.wikipedia.org/wiki/Warren_v._District_of_Columbia There are a lot of other incidents like this: http://nypost.com/2013/01/27/city-says-cops-had-no-duty-to-protect-subway-hero-who-subdued-killer/ https://en.wikipedia.org/wiki/Town_of_Castle_Rock_v._Gonzales Here is a long list someone compiled about court cases over this. http://whatreallyhappened.com/WRHARTICLES/courtrulingsonpoliceprotection.php           e                ffa  div>                    Trying to find legit sources on this is far tougher than it should be. This is the SCOTUS decision about police, their only job is to enforce the law:  https://en.wikipedia.org/wiki/Warren_v._District_of_Columbia  There are a lot of other incidents like this:  http://nypost.com/2013/01/27/city-says-cops-had-no-duty-to-protect-subway-hero-who-subdued-killer/  https://en.wikipedia.org/wiki/Town_of_Castle_Rock_v._Gonzales  Here is a long list someone compiled about court cases over this.  http://whatreallyhappened.com/WRHARTICLES/courtrulingsonpoliceprotection.php   link   parent