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probable cause

American  

noun

Law.
  1. reasonable ground for a belief, as, in a criminal case, that the accused was guilty of the crime, or, in a civil case, that grounds for the action existed: used especially as a defense to an action for malicious prosecution.


probable cause British  

noun

  1. law reasonable grounds for holding a belief, esp such as will justify bringing legal proceedings against a person or will constitute a defence to a charge of malicious prosecution

"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

Etymology

Origin of probable cause

First recorded in 1670–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"We believe we will more than accomplish the evidentiary burden of probable cause at this point to hold David to answer on these three felony charges," Hochman told the press.

From Barron's Jul. 21, 2026

It might instead be something lower, like probable cause.

From Slate Jun. 23, 2026

In order for charges to be filed, prosecutors would have to convince a grand jury, made up of members of the public, that probable cause exists to believe a crime has been committed.

From BBC May 16, 2026

The alleged misconduct came to light in late 2022 after a motorist said police had pulled him over and searched his vehicle without consent or probable cause.

From Los Angeles Times May 7, 2026

I knew that he had no probable cause to enter my vehicle and that he was conducting an illegal search.

From "Just Mercy" by Bryan Stevenson

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