Said Court shall have power, upon affidavit or otherwise, to ascertain such matters of fact as may be necessary to the exercise of its jurisdiction.
Okla. Stat. tit. 20, § 42
May ascertain jurisdictional facts
R.L. 1910, § 1771.
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.