legal eagle vs procurator

legal eagle

noun
  • A skillful and adroit attorney 

procurator

noun
  • An agent or attorney. 

  • A tax collector. 

  • The governor of a small imperial province. 

  • A legal officer who both investigates and prosecutes crimes, found in some inquisitorial legal systems, particularly communist or formerly communist states – see public procurator 

How often have the words legal eagle and procurator occurred in a corpus of books? (source: Google Ngram Viewer )