Asbestos is an extremely harmful substance that can cause serious consequences to the health of anyone who disturbs or damages it. Historic exposure to airborne asbestos fibres is the single largest cause of death to workers in the UK. For this reason, all workers who may come across asbestos or asbestos-containing materials (ACMs) must be trained so that they can work safely. This includes accidental discovery of asbestos and accidental damage to asbestos and ACMs.