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://www.realitybreached.com/2022/10/10/the-crucial-role-of-police-work-in-keeping-concerts-safe-and-secure/