Short answer
The checkered band on Chicago PD hats, known as the Sillitoe tartan, was adopted in 1967 to make officers more visible and to honor a Scottish policing tradition that dates back to 1932.
Key points
- Sillitoe tartan is a black‑white checkered stripe.
- Introduced to Chicago officers in 1967.
- Originated with Glasgow Police in 1932.
- Helps officers stand out in crowds.
- Symbolizes authority and visibility.
The black‑white checkered stripe on Chicago PD hats, called the Sillitoe tartan, was added in 1967 to make officers instantly recognizable and to pay homage to a Scottish policing tradition.
Origin of the Sillitoe tartan
In 1932, Percy J. Sillitoe, chief constable of Glasgow Police, added a black‑white checkered band to officers’ caps so they would be easily spotted in busy streets. The design proved popular and spread to police forces worldwide.
Why Chicago adopted it
Chicago Superintendent O.W. Wilson introduced the pattern to the department in May 1967. The stripe enhances officer visibility, reinforces uniform cohesion, and links Chicago Police to a long‑standing international tradition.
Frequently asked questions
Is the checkered stripe unique to Chicago Police?
The Sillitoe tartan is used by many police departments across the United States and in other countries, though Chicago’s version is one of the most recognizable.
Did Chicago use a different design before 1967?
Before 1967, Chicago officers wore standard baseball caps without the checkered stripe; the addition was a deliberate change to improve visibility.
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