A summons is a legal document issued by a court or by an administrative agency of government for various purposes.
Summons for Martin Luther to appear at the 1521 Diet of Worms, signed by Charles V. The text on the left was on the reverse side.
A traffic ticket is a notice issued by a law enforcement official to a motorist or other road user, indicating that the user has violated traffic laws. Traffic tickets generally come in two forms, citing a moving violation, such as exceeding the speed limit, or a non-moving violation, such as a parking violation, with the ticket also being referred to as a parking citation, or parking ticket.
A motor officer writes a traffic ticket for a motorist accused of speeding.
A sign on the Queen Elizabeth Way in Ontario, Canada, warning of a $10,000 fine, a roadside licence suspension, and a roadside vehicle seizure if motorists exceed the speed limit by 50 km/h or more.
A parking ticket machine in Seinäjoki, Finland
A parking ticket issued in Washington, D.C. in 2011.