before the sale. 3. That the property conveyed had not been redeemed from the sale at the date of the deed. And in all suits involving the title to property claimed by virtue of a deed executed substantially as aforesaid by the treasurer, the person claiming title adverse, shall be required to prove, in order to defeat the said title, either that the said property was not subject to taxation for the year or years named in the deed, that the taxes had been paid before the sale, or that the property had been redeemed from the sale according to the provisions of this act, and that such redemption was made for the use of persons having the right of redemption under the laws of the territory, but no person shall be permitted to question the title acquired by a treasurer's deed without first showing that he or she, or the person under whom he or she claims title, had title to the property at the time of the sale, or that the title was obtained from the United States after the sale, but in any case where any person had paid his taxes, and by any mistake of the treasurer such payment does not appear upon his books, and the land upon which the taxes were paid was afterwards sold, the treasurer's deed shall not convey the title: Provided, That in all cases where the owner of lands sold for taxes shall resist the validity of such tax title, he may show fraud committed by the officer selling the same or in the purchase, to defeat the same; and if fraud is so established, such sale shall be void.
Sect. 58. When, by mistake or unlawful act of the treasurer, land has been sold on which no tax was due at the time, or whenever land is sold unlawfully, in consequence of any other mistake or irregularity rendering the sale void, the county shall hold the purchaser harmless by paying him the amount of principal and interest and costs to which he would have been entitled had the land been rightfully sold, and the treasurer and his sureties will be liable to the county for the amount of his official bond. Provided, That the treasurer or his sureties shall be liable only for his own or his deputy's acts.
Sect. 59. The books and records belonging to the offices of the clerk of the board of county commissioners and the county treasurer, or copies thereof duly certified, shall be deemed sufficient evidence to prove the sale of any real prop-