Ala. Code § 6-6-390: When Process of Garnishment Obtainable.

The plaintiff in any pending action for the recovery of money or the plaintiff or assignee in any judgment on which execution can issue may obtain process of garnishment as defined in Section 6-6-370; provided, that no garnishment shall issue prior to a final judgment, pursuant to this section and Sections 6-6-291 through 6-6-294, unless there is a showing that such garnishment is necessary because of extraordinary circumstances.