If the inquest discloses facts which lead or may lead to the prosecution of any person for the homicide of the person for whom the inquest is held, the coroner shall require all witnesses who testify to facts material to the issues involved in such prosecution to enter into a recognizance to appear in the superior court of the county in which the inquest is held and to give evidence against the defendant in such prosecution; and he shall also petition for the issuance of a warrant for the arrest of the person suspected of the homicide, which warrant shall be returnable as other warrants.