The Management of Health and Safety at Work Regulations 1999 places a duty on employers to assess and manage risks to their employees and others arising from work activities.
Employers must also make arrangements to ensure the health and safety of the workplace, including making arrangements for emergencies, adequate information and training for employees and for health surveillance where appropriate.
Employees must work safely in accordance with their training and instructions given to them. Employees must also notify the employer or the person responsible for health and safety of any serious or immediate danger to health and safety or any shortcoming in health and safety arrangements.
The HSE has produced a short guide on these regulations.