Tip-off led to drink-drive arrest at supermarket car park in Diss
Police arrested a motorist almost four times the drink-drive limit driving around a supermarket car park in Diss.
South Norfolk police stopped the vehicle following a tip-off from a member of the public on Saturday evening.
A breathalyser test read of 137µg - almost four times the legal limit of 35µg - and the driver was arrested for drink driving.
South Norfolk officers Tweeted that the person who called: "may have saved a life".