For decades/years/centuries, the police force/department/agency has been shrouded in a veil of secrecy. This "Blue Wall of Silence" protects/shields/hides officers who commit/perpetrate/engage in acts of brutality, https://mathexivk378957.educationalimpactblog.com/60061713/a-blue-wall-of-silence-the-untold-story-of-police-brutality