STATE v. BISA Criminal law and procedure—Committal proceedings—"A . . . case . . . to answer"—Duty of magistrate in committal proceedings—Examination of summary of evidence restricted to determining whether charge maintainable—"If . . . there is a case . . . to answer" to be given restricted meaning—Duty of magistrate to commit if there is even a scintilla of evidence to support the charge—Criminal Procedure Code, 1960 (Act 30), s. 184 (4) and (5).