With a small change of wording from Dept to Dept, the normal Oath of Office for a Police Officer goes something like this....
All officers must swear (or affirm) to the following statement:
I do solemnly swear (or affirm) that I am duly qualified, according to the Constitution of this State, to exercise the duties of the office to which I have been appointed, and that I will, to the best of my ability, discharge the duties thereof, and preserve, protect, and defend the Constitution of this State and of the United States of America.
I further swear (or affirm) that I will enforce the ordinances of the (Your City Here) and the (State of), protect the life and property of its citizens, that I will diligently seek to detect crime and to apprehend the perpetrators or crime, that I will be ever mindful of the trust that has been placed in my by the officials and citizens of the (Town), and will make every effort to live up to that trust.
So help me God.
Yes, LEO's take an oath to protect life however it is ridiculous (and most officers will tell you so) to expect an officer to be at the scene of a crime prior to an escalation of violence or to arrive in time to actually protect. That is why there are investigative units of any Dept.
The vast majority of LEO's would not stand still and watch a person harmed or watch a crime be committed. To try and imply most would is ridiculous and flys in the face of facts.
The public wants their police officers to be mini versions of Ms. Cleo, to somehow look into their crystal ball and know a crime is about to be committed or that a person is about to be harmed. The responsibility to defends ones self lies with the person themselves.
Those that believe the police should be their within 10 seconds of a 911 call to save their rear ends have their heads up this same area as much as those who bash LEO's at every turn.
The public wants their police officers to be mini versions of Ms. Cleo...