ViolentPanda
Hardly getting over it.
The point is that they don't use force on either side - they use force to do their best to keep the peace and allow all sides to carry on their lawful business.
Ideally, that would be what happens.
In reality, however, policing is inextricably tied (and it shouldn't be) to politics, whether that's the politics of self-advancement by individual officers, or the politics of the government.