when I say thrown out I mean in the sense of a good behaviour bond slap on the wrist:) yes still recorded....i have seen people get off with out a fine and only had to pay court costs..
Not saying this is what will happen and I'm no expert just saying what I have witnessed:)
the fact is if he was caught in an unregistered car he has broken the law. so no sense pleading not guilty if those are the facts because unless he can actually prove he wasnt driving said unregistered car I dont see how he can plead any other way if contesting in court..

