O FFICE O F M AYOR R AHM E MANUEL
C ITY O F C H IC A G O

October 23, 2018
William Pierce
62096-93315365@requests.muckrock.com
Dear Mr. Pierce:
On behalf of the City of Chicago Office of the Mayor (Mayor’s Office), I am responding to your
Freedom of Information Act (“FOIA”) request received by our office October 9, 2018. The
Mayor’s Office sought a timely extension on October 16, 2018, and is now responding to your
request seeking:
A copy of the city's "action plan" created for Friday October 5, 2018 regarding public
response to the verdict in the trial of Jason Van Dyke.
Please be advised that the record you seek is exempt pursuant to Section 7(1)(v), which exempts:
Vulnerability assessments, security measures, and response policies or plans that
are designed to identify, prevent, or respond to potential attacks upon a
community’s population or systems, facilities, or installations, the destruction or
contamination of which would constitute a clear and present danger to the health
or safety of the community, but only to the extent that disclosure could reasonably
be expected to jeopardize the effectiveness of the measures or the safety of the
personnel who implement them or the public. Information exempt under this item
may include such things as details pertaining to the mobilization or deployment of
personnel or equipment, to the operation of communications systems or protocols,
or to tactical operations.
The “action plan” you seek is a response plan designed to respond to a potential attack upon the
community’s population, including but not limited to details regarding the deployment of
specialized resources, call numbers, critical staff positioning and procedures for the handling and
preparedness for operations and emergency situations. Releasing this information could enable
terrorists and criminals to know in advance where police, fire and other valuable city resources
will be. This action plan can be applied to many types of public safety situations that may arise,
and the release of this plan could allow persons with this information to effect a strategy in
advance for undermining or otherwise targeting public safety efforts. Because of the reasons
stated above, the plan is properly denied under Section 7(1)(v).
121 NORTH LASALLE STREET, SUITE 500, CHICAGO, ILLINOIS 60602

 You have the right to have a denial reviewed by the Public Access Counselor (PAC) at
the Office of the Illinois Attorney General, 500 S. 2nd Street, Springfield, Illinois 62706,
(877) 299-3642. You also have the right to seek judicial review of your denial by filing a
lawsuit in Cook County Circuit Court.

Sincerely,
Shannon I. Leonard
Freedom of Information Officer