What must a lawyer do after discovering their evidence is false?

When a lawyer discovers that their evidence is false, the appropriate course of action is to excuse themselves from the case if possible. This choice involves acknowledging the ethical obligation to promote justice and maintain the integrity of the legal process. A lawyer has a duty to the court and to the legal system to ensure that only truthful evidence is presented. Continuing to represent a client with knowledge of false evidence could undermine the administration of justice and could lead to further ethical violations.

In circumstances where a lawyer becomes aware of evidence that is false, stepping aside from the case allows for the appropriate handling of the situation, which may include informing the court or the appropriate authority. The commitment to ethical practice is paramount in the legal profession; removing oneself from the case prevents any complicity in the perpetuation of deception.

Other options do not align with the standards of professional responsibility. For instance, dismissing the case immediately may not be practical or ethically sound, as there may be required procedures to follow or other implications to consider. Ignoring the false evidence could lead to more significant consequences, including legal liability or professional disciplinary actions. The option to continue with the evidence based on its inconsequentiality does not adhere to ethical standards since all evidence presented must be truthful and reliable.