Which is not one of the core beliefs in police culture?

Patrol work being a necessary and vital part of police work does not encapsulate a core belief in police culture, as it pertains more to operational responsibilities rather than the underlying ethos or informal norms that shape officer conduct and values.

The first three statements reflect deeper, often philosophical aspects of police culture. Loyalty to colleagues suggests an unwavering allegiance among officers, often prioritized above other values, including adherence to the law. Believing that the war against crime cannot be won without bending the rules signifies a perspective that sees rule-breaking as sometimes necessary for achieving goals deemed more important, indicative of a "ends justify the means" mentality. The idea that no one else understands the nature of police work highlights a mindset that enforces a sense of isolation and exclusivity within the profession, fostering camaraderie among officers while alienating them from the public.

In contrast, the notion of patrol work's necessity is more functional and descriptive, lacking the philosophical implications that characterize core beliefs in police culture.