The MUTUAL AID AGREEMENT the Roselle Fire Department has with nearby communities helps ensure that emergency response will be available when there are multiple calls at the same time.  When an incident occurs and is larger or more complex, assistance from surrounding emergency agencies automatically occurs.  The Roselle Fire Department members combine with members from other agencies to form a larger response. This system of team growth is expandable to just bringing in a few surrounding fire departments to being able to bring in trained personnel from the entire State of Illinois, the entire Midwest, or personnel from all over the United States if necessary.