Colorado Revised Statutes Title 40. Utilities § 40-33-105. Presumptive evidence

In all actions brought against any such common carrier under or by virtue of any of the provisions of this article to recover damages for personal injury to the employee, or where such injuries have resulted in his death, the fact of any such injury or death occurring to such employee and arising out of and in the course of his employment shall be presumptive evidence of the want of reasonable skill and care on the part of such carrier and its agents, servants, and employees in reference to such injury or death unless and until rebutted.