Latest figures show 477 police officers were assaulted in the 12 months leading up to March 2018. Of those, 241 caused injury.

The D-Series features an articulating camera head, allowing officers to get different angles without having to unclip the camera, and robust encryption means footage is safe and secure from the moment it is recorded.

The cameras have also been introduced to support and protect victims of domestic abuse. The force say they will help in domestic abuse cases where victims may not want to press charges because the footage can be used as evidence.