flout vs take law into own hands

flout

noun
  • The act by which something is flouted; violation of a law. 

  • A mockery or insult. 

verb
  • To express contempt for (laws, rules, etc.) by word or action. 

take law into own hands

How often have the words flout and take law into own hands occurred in a corpus of books? (source: Google Ngram Viewer )