Knew a bloke who was a Main Roads vehicle inspector.
Very handy when buying a used car from a dealer - pulls up in his work ute, walks in wearing MRD uniform, says G'day to the dealer "Mate, I'm interested in the "Patrol" out the front, talk to me about it"
Dealer (!@#$ing himself by now) Sorry, that one's not for sale - it's just sitting there to be taken away because we've found that the gearbox / brakes / engine is shot so we can't sell it"
Ok, how about the "Cruiser"? No, no - same thing, full of problems
& so on till we find out that the "Pajero" is fine. "Thanks for that - just checking for a mate. He'll be in this arvo to talk to you."
On his way out "By the way, I'll be back on Wednesday with an inspection team - all those problem cars will be sorted by then, won't they?"
Unfortunately, he's retired now