Whenever the commission has issued or promulgated any order or rule, in any writ of review brought by a public service company to determine the reasonableness of such order or rule, the findings of fact made by the commission shall be prima facie correct, and the burden shall be upon said public service company to establish the order or rule to be unreasonable or unlawful.
[ 1961 c 14 § 81.04.430. Prior: 1911 c 117 § 100; RRS § 10449.]