All persons having an interest in the subject of a civil action, and in obtaining the judgment demanded, may be joined as plaintiffs, except as otherwise expressly provided; and, if one who ought to be joined as plaintiff declines to join, he may be made a defendant, the reason therefor being stated in the complaint.

(1949 Rev., S. 7823; P.A. 82-160, S. 37.)

History: P.A. 82-160 added the words “a civil” before “action”.