Typically you would hear from an ombudsman. At least from my perspective of an ombudsman at the provincial level, it deals more with processes and ensuring that there is justice, recommendations and so forth. If you think of the average vet who is retired, who would be the true advocate for a vet and what role would you play in that?
Evidence of meeting #37 for Veterans Affairs in the 40th Parliament, 3rd session. (The original version is on Parliament’s site, as are the minutes.) The winning word was office.
A recording is available from Parliament.