Slightly sideways but related.
Two weeks ago, our numberplates were stolen. Never heard a thing, and as the dog (inside) didn't bark I think we can 'not' accuse a certain ethnic group for this one...
A week later, noticed another car in the same street with similar empty spot on it's rear...
$26 here (WA) for new plates, and around $20 for various 'Security' screws.
Yes, I know, just look up youtube for a quick how-to remove those 'non-unscrewable' Security Screws....
But, being a devious old(er) bugger, .....
,
Trick is - and you need safe access INside the boot lid - to only tighten up the screws as much as needed to stop the rattling, then lock-nut it with a second nut. - and liberal amounts of the appropriate loctite, for good measure add a third nut as a locker...
- Brains Trust comes along... "undoes" the bolt-head and wonders why it's spinning freely and not coming out.
One or two 'Security' screws or nut/bolt sets should be enough to dissuade most of the idiots.
But making it obvious, that you're Serious, with various 'security screws, pop-rivets and allen-heads, non-reversables and lots of them, should get the message across.
Failing that, and for front mounts, perhaps filing the edges to make them "challenging". At worst, they may leave some DNA behind !
Checked a newish Mercedes, , and the rear plates are mounted onto short PLASTIC pillars ! Totally insecure....

