588-598
CODE OF CIVIL PROCEDURE
SECTION 588-598
588. Issues arise upon the pleadings when a fact or a conclusion of law is maintained by the one party and is controverted by the other. They are of two kinds: 1. Of law; and, 2. Of fact. 589. An issue of law arises: (a) Upon a demurrer to the complaint, cross-complaint, or answer, or to some part thereof. (b) Upon a motion to strike made pursuant to Section 435, 436, or 473. 590. An issue of fact arises: 1. Upon a material allegation in the complaint controverted by the answer; and, 2. Upon new matters in the answer, except an issue of law is joined thereon. 591. An issue of law must be tried by the court, unless it is referred upon consent; provided, however, that failure on the part of any person filing any demurrer to prosecute the same may be construed as a waiver of such demurrer, except as otherwise provided in Section 430.80 of this code.