law officer vs officer

law officer and officer both are nouns.

Word	Noun	Adjective	Verb	Adverb
law officer	Yes	No	No	No
officer	Yes	No	Yes	No

As nouns, officer is a hyponym of law officer; that is, officer is a word with a more specific, narrower meaning than law officer:

law officer (noun)	officer (noun)
an officer of the law	a member of a police force
	someone who is appointed or elected to an office and who holds a position of trust
	any person in the armed services who holds a position of authority or command
	a person authorized to serve in a position of authority on a vessel

law officer (verb)	officer (verb)
	direct or command as an officer