I am having a major brain fart and can't remember the name of the case that decided it is not the police's job to protect individual citizens, but rather society as whole.
Its out of D.C., involved the lady's house being burglarized, the was then held for days, raped, etc.... the police came but never made entry to see what was wrong and she sued - and lost.

Any help? I'm sure someone out there knows it off the top of their head...