It is all about the money, the Premier was heard saying exactly that, that these new cameras will bring the state alot more revenue each year. Under the law the tolerance was 7km/hr due to variations in speedo's of differing age and make etc. Some how the exceptable limit was "ruled" as 5 km/hr either way. The funny thing is the government is doing all these things yet none of them are actually legal. A good example I'll give is where I live there are 2 schools, one private catholic and the other a public. They are oposite each other on the same road. Under the law Drivers must "obey" the 40km/hr school zone speed, but this actually only applies on the public school side of the road as the private school is not reconised under this particular law. so bascially, legally speaking if you were to drive at the posted limit of 60km/hr during "school zone" times the police can not legally fine you for it. But guess what, they still do. you need to take the matter to court to win. yet another case of the Government getting away with illegal activities. just my rant, oh and don't take the above eg as me saying to speed in school zones, because don't... Its all about the money, how sad