In light of Cpl. Steve Stoesz's being charged for speaking out on DND's plans to scale back mental health services, I thought it would be a good time to re-post. - JRM
Forces personnel are subject to the National Defence Act AND the Queens Rules & Orders. Both address the issue of speaking out.
National Defence Act
Queens Rules and Orders
19.14 – IMPROPER COMMENTS
(1) No officer or non-commissioned member shall make remarks or pass criticism tending to bring a superior into contempt...
(2) No officer or non-commissioned member shall do or say anything that:
(a) if seen or heard by any member of the public, might reflect discredit on the Canadian Forces or on any of its members; or
(b) if seen by, heard by or reported to those under him, might discourage them or render them dissatisfied with their condition or the duties on which they are employed.