Chicago Police rank insignia patch worn by Field Training Officers (FTO) on the blue uniform shirt.
Glossary –
Chicago Police Department Badge - C P D Police Officer Star over White Leather T-Shirt by Serge Averbukh - Pixels
Miniature version of the Chicago Police shoulder patch worn by Police Officers on the Class B and C Uniform shirts, sweaters and most Outer Garments
CHICAGO POLICE SHOULDER PATCH: Police Officer (TWILL Backing / Field Uniform), Size 3 - Small
CHICAGO POLICE Shoulder Patch, 4-1/4x4 - Hero's Pride
Oakland Police Department - Wikipedia
UNIFORM PATCHES
Chicago Police rank insignia patch worn by Sergeants on the white uniform shirt.
CHICAGO POLICE SERGEANT CHEVRON RANK INSIGNIA PATCH: Standard Shirt (TWILL Backing)
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