Fifty-six speeding truck drivers in just a few hours, all caught on camera: that's the bottom line. Like the taxi industry, a small proportion of bad apples ruins the reputations of all the professional, ethical truckies out there.  Watch the story on video here

Section 10 of the Crimes, Sentencing Procedure Act gives a judge the opportunity to consider all the relevant factors in a case, and record a conviction without penalty - here's what you need to know