Mich. Comp. Laws § 730.253
The said board shall within 15 days after the adoption of this act in any city and during the month of November of every year thereafter, make and file with the clerk of the justice court a list of persons to serve for the succeeding calendar year as justice court jurors equal to 1 for each 200 inhabitants of the city, computed according to the last preceding census: Provided, That in no case shall it be necessary to file a list of more than 400 electors. If the names on such list shall be exhausted prior to the end of such calendar year, the justices of the peace shall order said board to make and file an additional list of persons to serve as jurors for the remainder of such year and it shall be the duty of said board to make and file such list. All persons selected for jury service by said board shall be qualified electors of the city and shall be drawn from the city at large and shall not be required to serve in any 1 year for a period of more than 1 jury term.
MCL 730.253