an offence that is triable in a magistrates' court
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
How to use summary offence in a sentence
In English law, crimes are usually classified as treason, felony, misdemeanour and summary offence.
Misdemeanour, roughly but not exactly, corresponds to the French dlit, and summary offence to contravention.