Chicago Police DepartmentDepartment Notice D11-09
Personal Radiation Detectors Pilot Program
Issue Date:18 March 2011Effective Date:18 March 2011
Rescinds:S94-08-01
Index Category:Department Notice
I.Purpose
This directive outlines Chicago Police Department policy relative to the use of personal radiation detectors.
II.General Information
  • A.The Department has obtained a number of PRDs from the Illinois Law Enforcement Alarm System agency for deployment within the City.
  • B.The PRD is designed to detect, search, and locate gamma-emitting radioactive sources. It is designed for use in any area where radiation dose and dose rate are required to be measured. This device detects and locates radiation sources in both indoor and outdoor environments.
  • C.The PRD is powered by a rechargeable battery supplied with the device. When the battery voltage drops below 1.15 volts, the instrument’s LCD will indicate a blinking battery sign and an audio, light, and/or vibration signal will be produced. This means the battery must be recharged or replaced.
  • D.The PRD comes with a clip which may be used to fasten the device to a waist belt or pocket. Affix the PRD at least 6 inches away from any radio-emitting source (e.g., cell phones and radios) to avoid any false-positive readings.
  • E.The Equipment and Supply Section will be responsible for the distribution and replacement of the batteries to power the device as well as handle the inventory of the PRD.
  • F.Alarms may be triggered by many legitimate sources that are not life threatening such as:
    • 1.Legitimate radioactive materials or sources being transported legally in approved and properly prepared packaging.
    • 2.Patients that have undergone recent medical treatments, including certain types of radiation therapy or nuclear medicine.
    • 3.Items in commerce that contain naturally occurring radioactive materials (e.g., radium in pipe scale, granite rock, and certain fertilizers)
III.Policy
  • A.No member of the Chicago Police Department will operate the PRD without first successfully completing the authorized training.
  • B.Department members will use proper judgment when responding to an alert from the PRD.
  • C.The activation of an alarm is not cause for members to detain and search individuals believed to be the cause of the alarm; however, it may assist the member in gaining crucial information to develop the probable cause or reasonable suspicion to detain or search for the cause of the activation.
  • D.Responding members should attempt to identify a legitimate source for the alarm before initiating a criminal investigation.
  • E.Department members must be able to articulate reasonable facts, circumstances, and conclusions to support any seizure or detention.
IV.Responsibilities
  • A.The program manager for this pilot program is the Deputy Chief, Counter-Terrorism and Intelligence Division. This program manager will:
    • 1.liaison with the ILEAS, as necessary.
    • 2.identify which Department units are to receive PRDs and the number of PRDs to be provided to the selected units.
    • 3.prepare a semi-annual report (January and July) of the devices and submit this report to the Department’s Uniform and Personal Equipment Chair.
  • B.The initial distribution of the PRDs will be coordinated by the Education and Training Division.
  • C.The Equipment and Supply Section will be responsible for the distribution and replacement of the batteries to power the device as well as handle the inventory of the PRDs.
  • D.Commanding officers of selected units will establish the manner in which the PRDs are deployed.
V.Procedures
  • A.At the beginning of their tour of duty, Department members in possession of the PRD will ensure the device is working correctly, sufficiently charged, and affixed properly.
  • B.The PRD comes with a clip which may be used to fasten the device to a waist belt or pocket.
    NOTE:
    Affix the PRD at least 6 inches away from any radio-emitting source (e.g., cell phones and radios) to avoid any false-positive readings.
  • C.When the PRD produces a warning signal, the Department member will determine what radiation level the device is detecting.
  • D.If the PRD display shows a radiation dose of 3 Rad or higher, the department member will immediately move to an area of less than 2 milliroentgen/hour, isolate the area and set up a safe zone.
  • E.If the PRD display shows any level of radiation dose, the Department member will:
    • 1.determine the location of the radioactive material, if safely able to do so
    • 2.attempt to establish probable cause to initiate an investigation;
    • 3.visually inspect and interview all personnel associated with the radioactive material;
    • 4.question the individual(s) about the possible sources for the radiation alarm.
  • F.If the source is determined to be noncriminal, the responding officer will document the information on a contact card.
  • G.If the source is undetermined, illegal, or not visible(e.g., the reading is coming from a package), the member will:
    • 1.notify their immediate supervisor.
    • 2.notify the Office of Emergency Management and Communications (OEMC) who will notify the Crime Prevention Information Center(CPIC), the Bomb & Arson Section, SWAT, and the Chicago Fire Department.
    • 3.make an effort to increase the distance between the source of radiation, crowds, and critical infrastructure.
    • 4.if necessary, escort the person to a secondary inspection location.
  • H.If the incident is determined to be criminal in nature or exposure to the member occurs, the Department member will complete the appropriate case report.
  • I.The Crime Prevention Information Center will use the Facilities Information Management System (FIMS) to determine if an area of concern has high amounts of radiation due to noncriminal occurrences.
Terry G. Hillard
Interim Superintendent of Police
T10-180 KCK