The Independent Investigations Office sent staff to Nanaimo after a man fell from the Bastion Street Parkade on the weekend.
The incident happened at about 2 a.m. Saturday when an RCMP officer on foot patrol found a man standing on a ledge in a parking area on Skinner Street.
When the officer announced himself, the man fell almost nine metres and sustained serious head injures.
"At this point all indications are that it's an accidental fall," said Owen Court, investigations office spokesman. "Our investigation looks at exactly what level of involvement the officer had with him and exactly what the circumstances are surrounding his fall."
The investigations officer was notified at 3:40 a.m. and investigators were sent to Nanaimo at 6:30 a.m.
"Over the course of the weekend his condition did improve," Court said. "That's the good-news part right now, that he appears to be recovering. I'm not going to say recovered, but significant improvement."