Which statement best defines probable cause and its role in making arrests or obtaining search warrants?

• A. A hunch with no factual basis.
• B. A fair probability that a crime has been committed or evidence is located where suspected; it justifies an arrest without a warrant and supports warrants for searches.
• C. A request from a member of the public.
• D. Proof beyond a reasonable doubt is required.

Answer: (B)

Probable cause is the level of belief you need to take action against someone or a place. It means a fair probability that a crime has been committed or that evidence of a crime is located where suspected. This belief must be based on facts and circumstances that would lead a reasonable officer, given training and experience, to think something real is going on. It’s more than a guess or a hunch and is assessed from an objective, reasonable-person standpoint.

When probable cause exists, it can justify arresting without a warrant in appropriate situations and it also supports getting a search warrant. For a search warrant, you present the facts to a judge or magistrate in an affidavit, showing there’s a likelihood that evidence or contraband will be found at the location described. Remember, proof beyond a reasonable doubt is necessary to convict someone, not to justify an arrest or obtain a warrant.