The Health and Safety Executive (HSE) defines work-related violence as:
Any incident in which a person is abused, threatened or assaulted in circumstances relating to their work
This can include verbal abuse or threats as well as physical attacks. These pages explain what HSE is doing to address the issue of work-related violence and provide access to a range of information.
Safe & Sound at Work
HSE places great importance on worker involvement and consultation.
Do Your Bit (links to the National Archives)