Are the cameras hidden?
Some are easy to spot, they hide them on overhead gantries on the freeway but the have supplementary cameras in the corners of the gantry to catch people using the emergency stop lanes. Plus in the previous kilometre or so before the gantry there will be a feckin' huge sign warning you the ' safety ' cameras are operating in this area.
In tunnels they are hidden up in the roof among the lights and stuff so in tunnels you behave
Roadside ones are harder to spot but if you see a shiny new SUV parked completely off the road , especially out in the country, treat with caution. Slow down and rev the cr4p out of your bike as you go past at least 40kmh below the posted speed limit.
Also over here most people are really good at flashing their high beams at you as you approach the revenue raisers( assuming they've spotted them ) . This is illegal, of course, and can cop you as big a fine as actual speeding.
Most cop cars, especially highway patrol, ( who even other cops despise ) have mobile radars which can catch you either following or going the other way.
Radar detectors are way beyond illegal and they have detectors to detect your defector.......