To make an arrest you must have?

• A. Probable cause
• B. Reasonable suspicion
• C. A warrant
• D. A confession

Answer: (A)

The main idea being tested is that arresting someone requires probable cause. Probable cause means there is a reasonable belief, based on facts and circumstances, that the person has committed a crime. It’s stronger than a mere hunch but not as strong as proof beyond a reasonable doubt. This standard is what justifies taking someone into custody in most situations.

Reasonable suspicion is too low a threshold for an arrest; it allows stops or brief detentions but not a full arrest. A warrant is a possible route to arrest, but not always required—police can arrest without a warrant if they have probable cause and there are no other legal barriers (though warrants are often used in many circumstances). A confession is not needed to justify an arrest, and it does not by itself establish probable cause.

So the best answer is probable cause.