The plea of not guilty puts in issue every material allegation of the indictment, information or complaint except that mental disease or defect excluding responsibility may be raised as a defense only in the manner provided for in this act.

[(19-1715) Cr. Prac. 1864, sec. 299, p. 249; R.S., R.C., & C.L., sec. 7758; C.S., sec. 8882; I.C.A., sec. 19-1615; am. 1970, ch. 31, sec. 13, p. 61.]