Interesting you note Perth. This trial was conducted in Perth back in 2014 / 2015. No idea of the result
http://www.abc.net.au/news/2014-12-0...-theft/5949932
I do agree though - if you notice your car was missing and the police do not jump to attention to help whilst the thief is driving the vehicle, what is your next move? I suppose the alternative to all this is never leave you keys lying around your house for thieves to steal.