Michigan Compiled Laws, Chapter 730. Justice Courts and Municipal Courts § 730.256

Sec. 6. Such list of jurors shall be made in duplicate and 1 copy filed in the office of the city clerk and the other copy filed in the office of the clerk of the justice court. Upon receiving and filing such list, the clerk of the justice court shall write down the names contained therein on separate pieces of paper, of the same size and appearance as nearly as may be, and shall fold up each of said pieces of paper so as to conceal the names thereon.