officer vs law officer

officer and law officer both are nouns.

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

As nouns, law officer is a hypernym of officer; that is, law officer is a word with a broader meaning than officer:

Other hypernyms of officer include lawman, peace officer.

officer (noun)	law officer (noun)
a member of a police force	an officer of the law
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

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