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Why can a written legal ethics code not cover every professional problem?

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illustration from Charles Dickens's Bleak House — Legal ethics Illustration by Hablot Knight Browne for Charles Dickens's *Bleak House*. Here Lady Dedlock is visited by her cunning old lawyer, who discovers her deepest secret and threatens to reveal it to her husband.

A written code of legal ethics cannot cover every professional problem because it is impossible to foresee every ethical dilemma that may arise in the practice of law. While codes are valuable for making obligatory principles readily available, they are inherently limited in scope.1

The complexity of legal practice often involves situations where the interests of a client and the broader interests of society do not coincide, and ethical principles do not always provide a clear mandate for how a lawyer should act. For example, a code may not explicitly dictate how a lawyer should handle an adverse witness they believe is telling the truth, or whether to exploit an opponent's errors.2

Because of these limitations, legal systems often supplement written codes with opinions rendered by bar association committees. Ultimately, ethical conduct relies not only on written rules but also on the profession's common understanding and the lawyer's role as an officer of the court, tasked with upholding the integrity of the justice system.12