UK drivers. if you pass a parked Police Speed Enforcement van with its lights flashing , doing 2 mph over the limit, will you definitely be recorded

every police car in aus has radar. and mobile alcohol/drug testing.
and laws that state no reason needed to randomly test.

Believe or not two police officers with Independant opinions can satisfy the minimum charging requirement without the need for any mechanical measurement evidence, that's British law (frightening don't you think).