Portal:Supreme Court of the United States, Union Pacific Company v. Board of Com'rs of Weld County Colorado…
“ For many years the revenue laws of Colorado have contained a section [1] imposing on the board of county commissioners 'in all cases' the duty of refunding to the taxpayer 'without abatement or discount' 'any tax, interest or costs, or any part thereof,' which is found to have been 'erroneous or illegal,' and by a necessary implication conferring on him a correlative and substantive right to have the same so refunded. ”
