What must an officer have to initiate a legal arrest?

Question

Quizplus · Accepted Answer

Probable cause is the legal standard that an officer needs to meet in order to make an arrest. It means that the officer has enough evidence to believe that the suspect has committed a crime. Reasonable suspicion is a lesser standard, required only to detain someone briefly for investigation. A signed statement from the victim or physical proof of a crime may aid in establishing probable cause, but they are not required in and of themselves.

What Must an Officer Have to Initiate a Legal Arrest