Problem is one set of rules by the state over-rides another set by the federal govt called ADR's, up until about 2002 or 4 the ADR rules stated your vehicle had to read within +OR - 10% . This meant your speedo could show 100kph but you could be doing anything from 90-110, problem occured when certain state govt's in a pure grab for cash set the tolerance below the 10% level with vic giving fines for 2-3kph over. Now with an average aussie fleet age around 10years old this means about 1/2 the cars on the road are easy targets for revenue raising.
As someone else stated, get pulled over, it stops you speeding/driving dangerously then and there. Get a ticket in the post 2+weeks later helps who?
Our state govt, barry who, has had the brainfart of using the fire fighters to run non urgent abulance jobs, putting response times to fires out the window, why not train the cash gun operators to paramedic level, equip their vehicles to an ambo level and suddenly have a dual detterant and response vehicle at the same time in "high accident zones"??????:)

