Any person who—
| (a) | without authority or contrary to his duty in any way uses, alters, adjusts or interferes with any instrument, machine or device designed or used for signalling, directing or detecting; |
| (b) | without authority or contrary to his duty alters, mutilates or delays any signal; |
| (c) | makes known the parole, watchword or countersign to any person not entitled to receive it; |
| (d) | wilfully or negligently gives or conveys to a person entitled to receive it, any parole, watchword or countersign different to that which he has received; |
| (e) | without proper authority discloses any information concerning the numbers, movements, location or preparations of the South African Defence Force or any forces co-operating therewith, or concerning any weapons, aircraft, vessels, stores, machines, instruments, devices or signal codes used or intended for use by such Force or forces, to the prejudice of such Force or forces; or |
| (f) | contrary to his duty discloses the contents of any document or is negligent in the performance of any duty, in consequence of which an unauthorized person becomes or might becomes aware of the contents of any document, to the prejudice of the South African Defence Force, |
shall be guilty of an offence and liable on conviction, if he committed the offence while on service, to imprisonment for a period not exceeding five years, and in any other case to imprisonment for a period not exceeding two years.
