The Peelian Principles
(The guiding idea here is widely known as "policing by consent." This approach governs in the United Kingdom, and also in Ireland, Canada, Australia and New Zealand. The guidelines were formulated under British Prime Minister Robert Peel when he established his police force in 1829, and they have worked well ever since.)
The Peelian Principles are also part of the "Community Policing" guidelines in many US Police Departments.
They are not NEW
They are NOT RADICAL!
They work – and they protect community and promote decency.
Note that firearms are not explicitly mentioned. The idea is to minimize violence as force or threat of force although neither are ruled out. But read #4 to best understand the philosophy.
“The basic mission for which the police exist is to prevent crime and disorder.”
“The ability of the police to perform their duties is dependent upon public approval of police actions.”
“Police must secure the willing co-operation of the public in voluntary observance of the law to be able to secure and maintain the respect of the public.”
“The degree of co-operation of the public that can be secured diminishes proportionately to the necessity of the use of physical force.”
“Police seek and preserve public favour not by catering to the public opinion but by constantly demonstrating absolute impartial service to the law.”
“Police use physical force to the extent necessary to secure observance of the law or to restore order only when the exercise of persuasion, advice and warning is found to be insufficient.”
“Police, at all times, should maintain a relationship with the public that gives reality to the historic tradition that the police are the public and the public are the police; the police being only members of the public who are paid to give full-time attention to duties which are incumbent on every citizen in the interests of community welfare and existence.”
“Police should always direct their action strictly towards their functions and never appear to usurp the powers of the judiciary.”
“The test of police efficiency is the absence of crime and disorder, not the visible evidence of police action in dealing with it.”
But these principles in this wording are found all over the web in the US and beyond.