This unfortunately is also the case in UK. The media and government both disguise the truth behind road crashes blaming speed and drink driving - whilst continually installing speed cameras in non-black spotted areas. So much so a group of vigilantes go around smashing every camera they find - yet this is never ever published in the local newspaper. Theres a whole website dedicated to the vandalism of speed cameras in the UK, one street which had a fixed speed camera had to be replaced a dozen times in a year yet the government has a policy of never reporting speed camera vandalism. Makes you wonder how many of these units are destroyed right here in Australia that we don't know about? And why are they keeping it a secret?
I've got a close mate who helps in the manufacture of the ic's that go into our cameras, and they are by no means foolproof... some are failing at a rate of 10% and the accuracy rate of some of these cameras vary from machine to machine. So long as their within spec they get put into use. Which is bullshit, because they once clocked a bog standard 70's Toyota Corolla doing 200km/h driven by a 30 something year old chick - the car has a top speed of about 160km/h and considering it's age it's highly unlikely it could do even that.