Is this legal?

[Eye In The Sky]

I'd be willing to be that it is taught somewhere on BMQ/BMOQ. Either way, it's no defence. I think someone would have a hard time arguing that they are ignorant of the existence of the NDA....

I remember being taught this on CLC in '93.  We were taught MilLaw by a Sgt-Major back then...not sure about PLQ now.  The old DCE 002 OPME was a good start point for learning when it was avail to NCMs.

QR & O, Vol 1, Ch 5, Art 5.01 - GENERAL RESPONSIBILITIES OF NON-COMMISSIONED MEMBERS [special attention to Art 5.01(a)(iv)].  See Vol 1, Ch 4 for D & R for Officers.

QR & O, Vol II, Ch 103, Art 103.02 - IGNORANCE OF LAW NO EXCUSE