The immediate aftermath of an incident Depending on the nature of the incident, first thoughts should, of course, be to address any medical requirements of any injured persons by contacting the emergency services if appropriate. Additionally, any remaining and immediate threat to safety of those on site should be considered. For instance, it may be necessary to evacuate the site. The contractor (in reality this would be the site manager or other person in charge of the site at the time) should ensure that the emergency response plan for the site is followed, as appropriate to the circumstances of the incident. Consideration should be given to preserving the scene, if possible, and ensuring all articles and equipment of potential evidential relevance are left undisturbed. It is however acceptable to disturb the scene if the welfare of others is at risk or steps need to be taken to make the area safe. See also: Actions/requirements post-incident on site—checklist. Duty to report It is important to remember that the law requires certain incidents, including