As far as V767077 is concerned, with the lend-lease property markings, and no additional stamps, the RCMP connection will likely remain unconfirmed.

The early Canadian-shipped BSR's did receive the broad-arrow-in-a-C Canadian property mark, but those were military guns, and whether this continued, let alone consistently, after the start of lend-lease, I am not sure.

On lend-lease guns, the history letter will show shipment to Hartford Ordnance Depot, with no info on further destinations.

Any secondary police career post-war would not be reflected anyways.