This Practice Note summarises the key offences which can be committed under the Health and Safety at Work etc Act 1974 (HSWA 1974) and the process for their prosecution in the criminal courts in England and Wales. For information on health and safety prosecutions in Scotland, see Practice Notes: Health and safety investigations in Scotland, Prosecution process for health and safety cases in Scotland and Sentencing health and safety cases in Scotland. Main duties imposed by HSWA 1974 It is an offence for an employer to fail to comply with a duty specified in HSWA 1974, ss 2–4 and 6–7. HSWA 1974, ss 2–4 and 6 set out the general duties of employers, the self-employed, persons who have control of premises, and manufacturers and suppliers to ensure the health and safety of employees and members of the public who may be affected by their work activities. HSWA 1974, s 2 imposes a duty on employers to ensure, so far as is reasonably practicable, the health, safety and welfare of