Meaning

1 senses
  1. (idiomatic)Strict secretiveness maintained by the members of a police force with respect to information which might be contrary to their interests, especially information concerning questionable police actions.

More definitions
  • the secrecy of police officers who lie or look the other way to protect other police officers

Origin

In reference to blue police uniforms.

In reference to blue police uniforms.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: blue walls of silence

Synonyms

4 synonyms
Close in meaning

See also

neighbours in the dictionary
blue wall of silence — meaning, examples, forms, synonyms | Krumeto