IANAL, but AFAIK attorneys can (and often do) cite a different court's ruling as support for their argument but if the cited court is not above the current cour

IANAL, but AFAIK attorneys can (and often do) cite a different court's ruling as support for their argument but if the cited court is not above the current court and in the same 'branch' of the tree, the current court isn't bound by it. That's why supreme court rulings are such a big deal. They are the ultimate 'root' authority.