Judges make law through precedent, their ideology and pholosophy are critical.

COMMON LAW (primary in U.S.) - intellectual framework comes from judge-made decisional law which gives precedential authority to prior court decisions on the principle that it is unfair to treat similar facts differently on different occasions (doctrine of judicial precedent). CIVIL LAW is intellectualized within the framework of late Roman law, and whose most prevalent feature is that its core principles are codified into a referable system which serves as the primary source of law.
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