Can a motion under section 995 of the Penal Code be denied?

To warrant the denial of a motion under section 995 of the Penal Code, it is not necessary that the proof be so complete as to justify a conviction of the accused. Probable cause is shown if a man of ordinary caution would be induced by the evidence, heard by the grand [17 Cal.App.3d 751] jury, to believe and seriously entertain a strong suspicion of the guilt of the accused. Bompensiero v. Superior Court, 44 Cal.2d 178, 183, 281 P.2d 250. An indictment will not be set aside if there is some rational ground for assuming the possibility that an offense had been committed and the accused is guilty of it.' (People v. Rissman (1956) 143 Cal.App.2d 488, 494, 299 P.2d 944, 948--949.)