this from news.com.au "The Queensland Police Union has questioned Qovernment claims that covert speed cameras are behind a fall in road deaths. The Government announced the introduction of covert speed cameras and unmarked police motorcycles in December last year as part of a package of road safety initiatives. But the number of fatalities per week had increased since covert speed cameras were introduced, union president Ian Leavers said on Wednesday. "There is not a shred of evidence that they have had any positive impact in reducing fatalities on our roads," he said. "I fear that the Bligh Government is becoming addicted to the revenue of speed cameras." Mr Leavers said many police officers believed covert speed cameras were "like poker machines on wheels". "Sure they rake in the dollars, however the deterrent effect for speedsters is non-existent," he said. The Government is due to hand down the 2010/11 State Budget on June 8, which will reveal its revenue forecasts."