Requirements to arrest someone: ex. crime + person + probable cause = arrest. Which element is essential?

• A. Has to be a crime
• B. Has to be a person
• C. Probable cause
• D. Ex. crime + person + probable cause = arrest

Answer: (C)

Probable cause is the essential element because an arrest must be grounded in a reasonable belief, based on facts and circumstances, that the person committed a crime. Merely knowing that a crime occurred and that a person is nearby isn’t enough to justify holding or detaining them; without probable cause, a detention risks violating the Fourth Amendment. Probable cause connects the crime to the individual by showing, from the totality of the circumstances, that it’s reasonable to believe this particular person is involved. The presence of crime and a person can point you toward probable cause, but nothing short of that reasonable belief will legally permit an arrest.