SJAM volunteers attend thousands of events across the country every year, covering a variety of public events such as marathons and other sporting events, parades, public gatherings, and concerts, providing first aid to the sick and injured. Such service is provided free at the point of delivery, although a charge may be levied on the event organiser for attendance at commercial events. The provision of services during public duties are not limited to first aid; ambulances are provided in most events for rapid transportation. Where necessary, SJAM may also provide healthcare professionals to provide assistance at mobile treatment centres.