field-grade officer
field officer
FO

"Could you tell me where I might find the field officer of the day?"

I may not be a field officer, but I've seen enough.

A good field officer always used others to build his or her cover.

"He would have been a fine field officer for us."

The judge, everyone said, had been a hell of a field officer in his day.

None of his field officers had turned up anything like that, but one could never be sure.

All the field officers were invited and over the years some had already died.

He used to be a field officer, and now is a protective guy.

It had been a long day, and she worried about her field officers.

So many field officers on their first major assignment reported every- thing, as though writing a book or something.