Thanks Madrob-wouldn't have wanted to get a speeding ticket for 31 mph and wasted police time that they could have used investigating criminal damage, burglary, theft, assault, murder, fraud, vandalism, etc.
General rule is +10%, so 31mph would get you nothing I'm afraid. Traffic/RPU do these Ops so as a general rule, deal with traffic, not "investigating criminal damage, burglary, theft, assault, murder, fraud, vandalism, etc".
There is a chance that they may well do what you ask about "investigating criminal damage, burglary, theft, assault, murder, fraud, vandalism, etc" just by doing one of these random stops.
I shall repeat the same statement I do every time a bollocks warning post like this is rolled out - would you feel the same if that *one* driver that wasn't pulled over, who was uninsured/had no licence/was drunk/under the influence of drugs etc, just happened to plough said vehicle into someone you love or a member of your family, or you/your car? No you wouldn't!! You'd sit & moan about how they should be out catching people who drink drive/drive under the influence of drugs/have no insurance/no licence etc!
You can't have it all ways! They're doing a job. It takes a few minutes of your time if you have nothing to worry about.