Over the years there have been a couple of attempts at helicopter theft down here, but as RobboRider said, we are now obliged under the Aviation Transport Safety Act 2004 to secure any aircraft outside a secure hangar. Absolute PITA, since the office at DOTARS didn't actually think about helicopters when they drafted the regulations
Whilst (probably) well meaning, the catch all decrees such as "manufacturer's door locks are not considered sufficient", and " the anti theft device must be plainly visible from outside the aircraft", are not helicopter friendly, especially with sunscreens in place in high temperatures!
Plenty of info available at
Department of Transport and Regional Services.
And slightly OT, a horse
is a vehicle/conveyance under our State Laws: witness the guy who was booked for using a mobile phone whilst driving a horse last year in Melbourne
