A pair of silver metal handcuffs lying on a dark surface, symbolizing law enforcement and National Handcuff Day

National Handcuff Day commemorates the revolutionary patent granted to George A. Carney in 1912 for his innovative “swinging bow ratchet-type” handcuff design, which transformed law enforcement practices worldwide.

Quick Facts

  • When is it?: February 20th annually
  • Tagged as: Law Enforcement History
  • What’s the hashtag?: #NationalHandcuffDay
  • When was it founded?: 2010
  • Who founded it?: Handcuff Warehouse and Peerless Handcuff Company

History

The modern handcuff design revolutionized law enforcement with its lightweight, standardized size, and innovative ratcheting mechanism. Carney’s design became the foundation for all subsequent handcuff developments, replacing the heavy and bulky restraints of the past.

Timeline

  • 500 CE: First hinged shackle design in Europe
  • 1780: Hiatt Handcuff becomes first manufacturer
  • 1862: W.V. Adams patents first adjustable ratchet handcuff
  • 1912: George Carney receives patent for swing-through design

Dates for 2025-2029

YearDateDay
2025Feb 20Thursday
2026Feb 20Friday
2027Feb 20Saturday
2028Feb 20Sunday
2029Feb 20Tuesday

Observed

The day is celebrated worldwide by law enforcement agencies, security professionals, and history enthusiasts through educational events and commemorative activities.

Fun Facts About Handcuffs

The first restraints were made from animal hides and vines, evolving through various materials and designs before reaching today’s standard model.

Quiz

  • What year was Carney’s patent granted?
  • Who purchased Carney’s patent?
  • What was revolutionary about the design?
    (Answers: 1912, Peerless Handcuff Company, Swing-through ratchet mechanism)

FAQs

  • What is a manacle?
  • A metal band used to restrain wrists
  • Are all handcuffs the same size?
  • Modern ones are adjustable
  • What materials are used?
  • Primarily nickel-plated steel and stainless steel

Importance of National Handcuff Day

This day recognizes the technological advancement in law enforcement tools and honors the innovation that standardized restraint devices globally.

  • Police Appreciation Day
  • Law Enforcement Day
  • National Security Officer Day
  • Criminal Justice Day