Okla. Const. art. VII, § 15
In all jury trials the jury shall return a general verdict, and no law in force nor any law hereafter enacted, shall require the court to direct the jury to make findings of particular questions of fact, but the court may, in its discretion, direct such special findings.
Added by Laws 1967, HJR 508, Section 1, State Question 448, Legislative Referendum 164, adopted at election held July 11, 1967.