POLICE have issued a photograph of a motorcyclist that assaulted their officers on Friday.

At 2pm on Friday December 14, officers tried to speak to the rider of a Burgundy Honda Varadero motorcycle, registration number YG5 at Pall Mall in the town centre.

The motorcyclist had stopped but as officers started to speak to the rider; he assaulted one of our officers by punching him in his face and then drove off.

Another officer tried to stop the rider driving off but they deliberately rode at him, striking him and causing injury to his leg and arm.

The vehicle then accelerated off at speed down Harborough Hill.

Later that day, the motorcycle then failed to stop for officers in Royston.

If you have any information about the whereabouts of the motorcycle or information about the rider please call 101 quoting incident 423 of December 14 or call Crimestoppers on 0800 555 111