What are the best sources of information about workplace hazards for the purposes of risk assessment?

Guidance on hazard identification and risk assessment can be obtained from a wide variety of sources including Health and Safety Approved Codes of Practice and guidance, British and International Standards, process and product information, and industry and trade association guidance. The personal knowledge and experience of managers and employees is also invaluable, as is the information contained in incident, accident and ill health records. Sometimes it may be necessary for employers to seek expert advice or to take relevant research into account.