Can a police officer arrest a person without a warrant?

A police officer may arrest a person without a warrant whenever "[t]he officer has probable cause to believe that the person to be arrested has committed a felony . . . ." (Pen. Code, 836, subd. (a)(3).) Probable 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.) Information from a reliable informant can provide probable cause for an arrest. (People v. Prewitt (1959) 52 Cal.2d 330, 337.)