A police officer filmed by a motorist smashing his car windscreen has been charged with threatening behaviour, assault and criminal damage.

Pc Joshua Savage is also charged with possession of a bladed article after an investigation by the Independent Police Complaints Commission.

Motorist Leon Fontana, 25, was apparently pulled over in a case of mistaken identity while driving in Camden last September.

The officer demanded the driver get out of his vehicle and when he refused began striking the windscreen shattering the glass.

The officer is then filmed slicing through the shattered windscreen with what looks like a penknife.

The Crown Prosecution Service announced today it had charged Pc Savage with four offences.