Probable cause is a legal standard used at several stages of a criminal investigation and prosecution. It is lower than proof beyond a reasonable doubt.
Last reviewed: August 20, 2026
Probable cause may justify an arrest or warrant, but it does not establish guilt. The State’s trial burden is substantially higher.
The defense should identify what facts were known at the relevant time, which came from reliable sources, and whether important contrary information was omitted or misunderstood.
Probable cause can arise in warrants, arrests, hearings, and charging decisions. The precise procedural setting matters.
Probable cause can matter to arrests, warrants, searches and certain court proceedings. The exact question depends on the stage: probable cause to arrest is not identical to probable cause to search a particular place for particular evidence.
Police may rely on observations, witness information, records and reasonable inferences. The defense can test reliability, omissions, stale information and whether the facts actually connect the accused or location to the alleged offense.
Information from another person is not automatically reliable or unreliable. Corroboration, basis of knowledge, track record and independent police work can affect the analysis.
A case can satisfy a probable-cause threshold and still fail at trial. The defense continues to test admissibility, credibility and whether the State can prove every element beyond a reasonable doubt.
Before choosing a strategy, we want the charging document, police reports, court notices and any release or protective-order paperwork. We also want the client’s complete account while events are still fresh, including facts that may be uncomfortable or seem unimportant. From there we identify evidence that can disappear: video, messages, photographs, location information, receipts, medical records and witnesses. We compare that material with the State’s version and separate three questions: what can the State legally use, what can it actually prove, and what facts about the client and the situation matter to the best lawful resolution.
Do not delete messages, posts, photographs or other potential evidence. Do not contact witnesses to persuade them what to say, and do not discuss the facts on social media. Follow every release condition and court order exactly as written. If police or an investigator asks for an interview, additional consent or access to a device, get legal advice before making a decision.