Okla. Stat. tit. 22, § 258
First: The witnesses must be examined in the presence of the defendant, and may be cross-examined by him. On the request of the district attorney, or the defendant, all the testimony must be reduced to writing in the form of questions and answers and signed by the witnesses, or the same may be taken in shorthand and transcribed without signing, and in both cases filed with the clerk of the district court, by the examining magistrate, and may be used as provided in 22 O.S. 1951 Section 333. In no case shall the county be liable for the expense in reducing such testimony to writing, unless ordered by the judge of a court of record.
Second: The district attorney may, on approval of the county judge or the district judge, issue subpoenas in felony cases and call witnesses before him and have them sworn and their testimony reduced to writing and signed by the witnesses at the cost of the county. Such examination must be confined to some felony committed against the statutes of the state and triable in that county, and the evidence so taken shall not be receivable in any civil proceeding. A refusal to obey such subpoena or to be sworn or to testify may be punished as a contempt on complaint and showing to the county court, or district court, or the judges thereof that proper cause exists therefor.
Third: No preliminary information shall be filed without the consent or endorsement of the district attorney, unless the defendant be taken in the commission of a felony, or the offense be of such character that the accused is liable to escape before the district attorney can be consulted. If the defendant is discharged and the information is filed without authority from or endorsement of the district attorney, the costs must be taxed to the prosecuting witness, and the county shall not be liable therefor.
Fourth: The convening and session of a grand jury does not dispense with the right of the district attorney to file complaints and informations, conduct preliminary hearings and other routine matters, unless otherwise specifically ordered, by a written order of the court convening the grand jury; made on the court's own motion, or at the request of the grand jury.
Fifth: There shall be no preliminary examinations in misdemeanor cases.
Sixth: A preliminary magistrate shall have the authority to limit the evidence presented at the preliminary hearing to that which is relevant to the issues of: (1) whether the crime was committed, and (2) whether there is probable cause to believe the defendant committed the crime. Once a showing of probable cause is made the magistrate shall terminate the preliminary hearing and enter a bindover order; provided, however, that the preliminary hearing shall be terminated only if the state made available for inspection law enforcement reports within the prosecuting attorney's knowledge or possession at the time to the defendant five (5) working days prior to the date of the preliminary hearing. In the alternative, upon agreement of the state and the defendant, the court may terminate the preliminary hearing once a showing of probable cause is made.
Seventh: The purpose of the preliminary hearing is to establish probable cause that a crime was committed and probable cause that the defendant committed the crime.
R.L. 1910, § 5674; Amended by Laws 1913, c. 68, p. 106, § 1; Amended by Laws 1961, p. 235, § 1, eff. October 27, 1961; Amended by Laws 1994, c. 292, § 3, eff. September 1, 1994.