Prior to being arrested this week and accused of passing sensitive or classified information to a foreign entity, a Canadian military intelligence member was embroiled in a secret, long-running internal dispute with his superiors, CBC News has learned.

Master Warrant Officer Matthew Robar was the subject of a disciplinary investigation by his unit within the Canadian Forces Intelligence Command starting in October 2024. The probe resulted in a reprimand — what the military calls a remedial measure and a recorded warning — delivered last spring, according to internal documents.

He works in the counter-intelligence branch of the military at its headquarters in Ottawa.

Robar was arrested Wednesday and charged with eight offences under the National Defence Act, the most serious of which is

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