Can an arresting officer have personal knowledge of a crime committed at the scene?

(1) First of all, under Nevada law an arresting officer need not have personal knowledge of the crime for which he makes the arrest as long as another officer with such knowledge is present at the scene. Mears v. Nevada, 83 Nev. 3, 422 P.2d 230, 235 (1967), cert. denied 389 U.S. 888, 88 S.Ct. 124, 19 L. Ed.2d 188 (1967). Appellant was arrested by one officer in the presence of another who saw the crime committed. The totality of information of the three officers at the arrest scene was sufficient to establish probable cause for the arrest.