Matthew B. answered 05/01/19
Well the term class traitor, is in reference to groups that work against their own class interest. So from a marxist perspective even under a reformist lens, police functions as arm of the state, a marxist view of the state is that is exist to intervene in class conflict. So a state that serves the ruling class will intervene in their favor more often then not. So consequently as a police officer even if you are working class your job requires you to intervene the side of the ruling class against the interest of the workers. So this would make you a class traitor