The system for testing truck drivers in Ontario has been compromised by bribes, forged documents and rigged testing, says a memo leaked to CBC's Marketplace by an industry insider.

A subsequent hidden camera investigation by Marketplace reveals that the training students get ahead of that test can be just as problematic.

Ontario's DriveTest centres are managed by a company called Serco, which oversees operations and logistics for a variety of organizations, ranging from air traffic control for th…