Which of the following statements describes the proper basis for a warrantless arrest for a felony?

• A. They have probable cause to believe a misdemeanor occurred.
• B. They have probable cause to believe a felony occurred.
• C. They have reasonable suspicion that a felony occurred.
• D. They have an arrest warrant.

Answer: (B)

A warrantless arrest for a felony rests on having probable cause to believe the person committed a felony. Probable cause means a reasonable belief based on facts and circumstances that would lead a prudent person to conclude the suspect is the one who committed the felony. This standard is higher than mere suspicion and can apply even if the crime wasn’t witnessed.

That’s why this option is the best: it matches the required standard for a felony arrest without a warrant. The other ideas don’t fit: probable cause to believe a misdemeanor occurred isn't enough for a felony arrest; reasonable suspicion is too low a standard for making an arrest; an arrest warrant isn’t warrantless.