What starts with reports of a speeding motorist ends with detectives jailing an aggressive drink driver, who ploughed into another car, killing two innocent people. And a tip-off about an illegal gun in a family home in County Durham helps police uncover a vast haul of dangerous weapons.

A 999 call about a possible intruder puts police on the trail of a violent attacker. And a traffic stop on the other side of Europe helps police in Bristol solve a burglary crime wave much closer to home.