No but I have been active in the car scene since 89 and ive seen many people defected and many people fight it. Ive never seen anyone win. I think the police would be reasonably on top of the legitimacy of a legal document such as a defect notice. They have been doing this for a while apparently, and apparently they have a thing called a 'legal department' to stop them doing things wrong. Get serious guys. this is everyday bread and butter stuff for them. And dude if your dad hasnt pointed this out then offence not intended but i certainly wouldnt pay him for legal representation. If you want to be smart read back through all of the other defect posts, use the search function ring legal aid etc. etc. because your just going to embarass yourself and piss off the judge who will then smack you with a bigger fine.
As I said, your young male and you drive a skyline welcome to reality.