50 ILCS 752/10
The General Assembly finds that it is important to promote intergovernmental cooperation between units of local government. Therefore, the purpose of IPSAN is to continue the ALERTS, PIMS, and ALECS systems, which have been developed by the Authority, through the intergovernmental cooperation of local public safety agencies, including sheriffs' offices, municipal police departments, and firefighting agencies, which have been funded by local taxpayers through user's fees since 1986. The General Assembly also finds that development and future enhancements to public safety communications and management systems and the promotion of interoperability between all public safety disciplines are in the best of interest of the people of the State of Illinois.
50 ILCS 752/10