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U.S. Legal System Rooted in Common Law, Louisiana's Napoleonic Code Exception

Discover how common law shapes U.S. legal decisions. Plus, the unique story of Louisiana's Napoleonic Code.

A woman is holding certificate, where men are standing wearing suit.
A woman is holding certificate, where men are standing wearing suit.

The U.S. legal system is built on a blend of common law and statutory law. Common law, also known as case law or precedent, is recognised in most states and at the federal level. Louisiana stands out, following the Napoleonic Code instead.

Common law in the U.S., often referred to as the 'common app' of the legal system, originates from English common law, brought over and adapted by colonists and jurists from the 17th century. It's based on court decisions, not statutory law, and ensures consistency and fairness in legal application.

Judges rely heavily on previous cases' principles and rulings to guide their decisions. While statutory law can override common law, in its absence, common law principles prevail.

The U.S. legal system's foundation in common law, along with statutory law, provides a robust framework for decision-making. This combination ensures a balance between flexibility and predictability in the application of the law.

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