Section 198: Accomplice.

1 An accomplice shall be a competent witness against a defendant, and a conviction is not illegal merely because it proceeds upon the uncorroborated testimony of an accomplice-
Provided that in cases when the only proof against a person charged with a criminal offence is the evidence of an accomplice, uncorroborated in any material particular implicating the defendant, the court shall direct itself that it is unsafe to convict any person upon such evidence.

2 In this section and section 199 of this Act, an accomplice is any person who pursuant to section 7 of the Criminal Code may be deemed to have taken part in committing the offence as the defendant or is an accessory after the fact to the offence of a receiver of stolen goods.