First, resources are needed from a larger or external government. This is a common-sense reason for municipal governments to declare an emergency. Many provincial resources can only be dispatched if an emergency has been declared. The Algo Centre Mall collapse in Elliot Lake, June 23, 2012. Postmedia Network Using the Elliot Lake mall collapse on June 23, 2012 as an example, the HUSAR unit (Heavy Urban Search and Rescue) was required as a standard fire department service is not equipped to deal with a building collapse in which people may be trapped under tons of rubble. Because building collapses are relatively rare events, it does not make sense to equip every fire department with a crane and other equipment to deal with the emergency.