Other enforcement agencies are responsible for particular areas of health and safety, and they often work together. For example, the police will, in most cases, take the lead in the investigation of road traffic incidents on the public highway (see page 191). The police will also conduct an investigation whenever a work-related death occurs and there is an indication that an offence of manslaughter (corporate or individual) or a criminal offence other than a health and safety offence may have been committed (see pages 20-22).