Jonty Messer talks to the chief constable of Wiltshire Police, Patrick Geenty, about PC Lee Birch, the future of tasers and why he didn't want footage of the officer using one the weapons on a man in custody:
More top news
Stay cold and unsettled
Staying cold and unsettled
Heavy snow and freezing temperatures have stranded vehicles and closed a number of roads across Gloucestershire and Wiltshire.