What evidence supports the finding that there was probable cause to question and arrest appellant?

We conclude that there is substantial evidence in the record to sustain the trial court's inherent finding that there was probable cause to question appellant and to arrest him. ¹ The officers had been told by an informer characterized by them as 'reliable' that appellant was using and dealing in narcotics. While no further evidence was presented to sustain the conclusion of 'reliability' of the informant none was necessary in the particular matter now before us. Information from an unreliable informant can constitute probable cause to arrest if it is sufficiently corroborated. (People v. Miller, 252 Cal.App.2d 877, 60 Cal.Rptr. 791.) Here there was adequate corroboration. The officers

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