i.e. you can get a ticket for driving 5 km an hour over the limit
I'm a school bus driver and my superior once tried to tell me that it was legal to drive 5 mph over the speed limit. I laughed and said "what the fuck are you talking about?" TBF it's de facto legal to do it because you're extremely unlikely to get a ticket for it and you could argue in court that a recorded speed 5 mph over the limit is not statistically different from the actual limit, but that's not the same as actually "legal".