Courts ruled that the police have no obligation to protect individuals
Warren v. District of Columbia Metropolitan Police DepartmentDeShaney v. Winnebago County
Structural Inherency:
The courts opinions and summations of these cases can be found in full at links below
http://gunrightsalert.com/documents/Warren_v._District_of_Columbia_444_A_2d_1.pdf
http://caselaw.lp.findlaw.com/scripts/getcase.pl?court=US&vol=489&invol=189