Can be either the omission to do something that a reasonable person would do when guided by those considerations that ordinarily regulate the conduct of human affairs, or the commission of some act that a prudent and reasonable person would not do.
EDP - The Right Approach, Health & Safety Terms and Abbreviations, London, UK 2014. http://www.edp-uk.com/Resources/Health-Safety-Term s-and-Abbreviations, (Envir Hlth and Sfty - Brit) {768}
EDP - The Right Approach, Health & Safety Terms and Abbreviations, Health, Safety & Environment Consultants Ltd, UK 2010. http://www.edp-uk.com/glossary.htm, (Envir Hlth and Sfty - Brit) {50}