What is cause to arrest?

"Cause to arrest exists when the facts known to the arresting officer would lead a person of ordinary care and prudence to entertain an honest and strong suspicion that the person arrested is guilty of a crime." (People v. Price (1991) 1 Cal.4th 324, 410.) "Determining whether an officer had cause to arrest requires two analytically distinct steps, each with its own standard of review. First, the court ascertains when the arrest occurred and what the arresting officer then knew; second, the court decides whether the officer's knowledge at the time of arrest constituted adequate cause. On appeal, a reviewing court must accept the trial court's express or implied findings on disputed factual issues in the first step of the inquiry if they are supported by substantial evidence, but a reviewing court must use its independent judgment to review the second step of the inquiry." (Id. at p. 409.)