Chicago Police DepartmentSpecial Order S05-10
Illinois Law Enforcement Alarm System
Issue Date:02 June 2017Effective Date:02 June 2017
Rescinds:30 May 2014 Version
Index Category:Extraordinary Responses
This directive:
  • A.continues the use of the Illinois Law Enforcement Alarm System (ILEAS).
  • B.outlines procedures for:
    • 1.requesting a response through ILEAS.
    • 2.responding to requests for Department services from ILEAS.
  • C.establishes responsibilities, notifications, and approval for ILEAS requests and responses.
  • D.continues use of the Illinois Law Enforcement Alarm System Log (CPD-21.311) available on the Department Intranet.
  • E.lists the use and defines the Northwest Central Dispatch System (NWCDS) .
  • F.satisfies CALEA Law Enforcement Standard Chapter 2 and Chapter 46.
II.General Information
  • A.The Illinois Law Enforcement Alarm System (ILEAS) is a statewide mutual aid system to be used when an emergency has caused an agency to exceed its own routine capabilities. ILEAS provides participating agencies with:
    • 1.immediate extra law enforcement manpower and equipment at the scene of law enforcement emergencies;
    • automatic and systemic response of law enforcement manpower teams;
    • 3.contractual responsibilities and liabilities;
    • 4.a broad area of coverage;
    • 5.a cooperative spirit for law enforcement emergency planning.
  • B.Illinois State Police Emergency Radio Network (ISPERN) Radios facilitate communication between different law enforcement agencies and all designated beat cars will be equipped with ISPERN radios.
The following exempt members are authorized to request an ILEAS response on behalf of the Department and approve or disapprove all ILEAS requests for Departmental responses outside of the City:
  • A.Superintendent;
  • B.First Deputy Superintendent;
  • C.Chief, Bureau of Patrol;
  • D.Chief, Bureau of Detectives;
  • E.Chief, Bureau of Organized Crime;
  • F.Chief, Bureau of Organizational Development;
  • G.Chief, Bureau of Technical Services;
  • H.ILEAS Coordinator or Assistant Coordinator.
  • A.The Chief, Bureau of Patrol, will:
    • 1.act as the official Department liaison with ILEAS personnel;
    • 2.sit as an ILEAS governing board member;
    • 3.designate an ILEAS Coordinator and an ILEAS Assistant Coordinator.
      The ILEAS Coordinator and ILEAS Assistant Coordinator are empowered by the Chief, Bureau of Patrol, and are authorized to make any decisions concerning ILEAS requests on the Chief's behalf.
  • B.The ILEAS Coordinator or ILEAS Assistant Coordinator will:
    • 1.on behalf of the Chief, Bureau of Patrol, act as a liaison between Department resources by facilitating communication and interaction between the Department and ILEAS personnel;
    • 2.approve or disapprove all ILEAS requests for Departmental responses outside of the City;
    • 3.designate a person in charge for all unplanned or emergency requests outside of the City;
      For all approved planned responses outside the City, the Superintendent or a designee will designate a person in charge.
    • 4.authorize the dispatch of district law enforcement units or specialized response units; and
      CPD SWAT will only act in support of the primary SWAT team who initiated the ILEAS request.
    • 5.maintain a file of ILEAS logs.
  • C.The Office of Emergency Management and Communications (OEMC) will facilitate all radio communications between the Department and ILEAS during a law enforcement emergency within the City.
  • D.  Northwest Central Dispatch System (NWCDS) in Arlington Heights will facilitate all radio communications between the Department and ILEAS during a law enforcement emergency outside the City.
  • A.To request an ILEAS response into the City of Chicago, the requesting exempt member will:
    • 1.personally respond to the scene unless the member is the First Deputy Superintendent.
    • 2.determine the response level needed.
    • 3.designate a staging area outside the immediate emergency area where law enforcement personnel and equipment will assemble.
    • 4.instruct Crime Prevention Information Center (CPIC) personnel to:
      • a.immediately notify the Superintendent and the First Deputy Superintendent of any and all requests.
      • b.notify the ILEAS dispatcher and request the appropriate response from the  Primary Mutual Aid Number . If there is no answer, notify the  Secondary Mutual Aid Number .
      • c.notify OEMC of the response and provide as much of the following information as possible:
        • (1)Name of the exempt member authorizing the request,
        • (2)Names of agencies responding,
        • (3)Responding agency field unit designation(s),
        • (4)Name/unit of CPD field contact person,
        • (5)Staging area location,
        • (6)Specialized details or instructions.
          Participating agencies have the right to deny any request to respond to ILEAS if it will create an undue burden on their agency.
      • d.complete an ILEAS log and forward the original to the Department ILEAS Coordinator.
  • B.When the ILEAS dispatcher notifies CPIC of a request for a Departmental response outside of the City, the following procedures will apply:
    • 1.CPIC personnel will:
      • a.notify the Department ILEAS Coordinator and request authorization for the response.
      • b.if approved, notify the OEMC point-to-point dispatcher to dispatch the requested Departmental assets and provide OEMC with the following information:
        • (1)name of ILEAS Coordinator or Assistant Coordinator approving the request;
        • (2)designated person in charge;
        • (3)nature of incident and level of alarm;
        • (4)district/units responding;
        • (5)specialized units responding;
        • (6)staging area (reporting location);
        • (7)name of contact person at staging area;
        • (8)call-back telephone number of contact or command person;
        • (9)travel directions to staging area(s); and
        • (10)other special details or instructions.
      • c.complete an ILEAS log and forward the original to the ILEAS Coordinator.
      • d.if denied, re-contact the ILEAS dispatch center and inform them of the disapproval.
    • 2.OEMC will normally dispatch no more than one designated ISPERN-equipped district law enforcement beat car per district. The following districts are designated to have ISPERN-equipped beat cars: 004, 005, 008, 010, 015, 016, 017, 022, 024, and 025.
      Whenever feasible, station supervisors will ensure vehicles equipped with the ISPERN radios are deployed every tour of duty and, if inoperable, ISPERN-equipped vehicles are serviced in a timely manner.
  • C.Request for the Department Helicopter
    If CPIC receives an ILEAS request for use of the Department helicopter to a location:
    • 1.within Cook County, the helicopter will be dispatched, if available.
    • 2.outside of Cook County, the procedures outlined in Item V-B will be followed.
  • D.ILEAS Mobile Field Force Program
    • 1.The ILEAS Mobile Field Force program is designed to provide rapid, organized, and disciplined response to civil disorder, crowd control, or other tactical situations.
    • 2.Specially trained and equipped personnel will be used to fulfill any requests for Mobile Field Force support.
  • E.Department members dispatched by OEMC to respond to an ILEAS request will:
    • 1.proceed immediately to the designated staging area and report directly to the staging area supervisor of the requesting agency.
    • 2.adhere to all policies, rules, and regulations of the Chicago Police Department.
    • 3.enforce all state laws, except for minor traffic violations outside of the city limits.
    • 4.upon termination of the ILEAS response, the members will:
      • a.notify the ISPERN dispatcher of termination of their assignment.
      • b.return immediately to their unit of assignment and notify the OEMC zone dispatcher of their availability for assignment.
  • F.The designated person in charge for all requests outside of the City will ensure that all personnel, utilized equipment, and duty hours are accurately tracked via the appropriate National Incident Management System (NIMS) form.
(Items indicated by italics/double underline were added or revised.)
Authenticated by: KC
Eddie T. Johnson
Superintendent of Police
16-112 EW
Northwest Central Dispatch
(847) 398-1130
ILEAS (Illinois Law Enforcement Alarm System)
Primary Mutual Aid Number 847-590-3500 Secondary Mutual Aid Number 309-494-8000
ILEAS (Illinois Law Enforcement Alarm System)
Primary Mutual Aid Number 847-590-3500 Secondary Mutual Aid Number 309-494-8000
1. -
Northwest Central Dispatch System(NWCDS) is an intergovernmental consolidated emergency dispatch system, serving 21 northwest suburban police and fire departments in suburban Cook County, Illinois. The combined population of the communities is approximately 500,000 covering over 170 square miles.