The court may first try and decide upon the grounds to vacate or modify a judgment or order before trying or deciding upon the validity of the defense or cause of action.
Okla. Stat. tit. 12, § 1034
Trial of application to vacate
R.L. 1910, § 5270.
Official source: Oklahoma Legislature. Reproduced from public-domain Oklahoma statutes; confirm against the official source for the current text. Not legal advice.