7-11-302. Trial or punishment of person lacking mental capacity.
 (a) No person shall be tried, sentenced or punished for the commission of an offense while, as a result of mental illness or deficiency, he lacks the capacity, to: 
 (i) Comprehend his position; 
 (ii) Understand the nature and object of the proceedings against him; 
 (iii) Conduct his defense in a rational manner; and 
 (iv) Cooperate with his counsel to the end that any available defense may be interposed.