Risk assessments in the workplace are carried out by a variety of people, depending on the type of business and the risks involved. In general, however, it is the responsibility of the employer to identify and assess risks to employees, and to put in place appropriate control measures to mitigate those risks.
There are a number of ways in which an employer can carry out a risk assessment, but the most important thing is that the process is thorough and takes into account all risks to employees, both physical and psychological. Once the assessment is complete, the employer should put in place suitable control measures to reduce or eliminate the identified risks.
If you are an employee and have concerns about the safety of your workplace, you should speak to your employer or health and safety representative. If you are not satisfied with the way your employer is dealing with risks in the workplace, you can contact the Health and Safety Executive (HSE) for advice and assistance.