constabulary vs law enforcement

constabulary

noun
  • The police in a particular district or area. 

  • A police force. 

adj
  • Of or relating to constables. 

  • Characteristic of police; police-like, rather than military. 

law enforcement

noun
  • The various government agencies, regarded collectively, involved in the prevention of crime and the apprehension of criminals. 

  • The task of ensuring obedience to the law. 

How often have the words constabulary and law enforcement occurred in a corpus of books? (source: Google Ngram Viewer )