A Critics of Investigations by police departments internal affairs unit talk about the "blue wall of silence" blocking a thorough investigation. What do you think this phrase means?

The blue wall of silence, also blue code and blue shield, are terms used in the United States to denote the informal code of silence among police officers not to report on a colleague's errors, misconducts, or crimes, including police brutality.

Explanation:

me friend a cop

yeah sometimes i dont know why maybe cuhz something is bothering you