Which of the following statements is true regarding an investigator who previously represented a client?

An investigator who has previously represented a client is bound by ethical considerations that govern the confidentiality and loyalty owed to former clients.

The statement that an investigator cannot use information to the disadvantage of a former client highlights a fundamental duty to protect client confidentiality. This obligation continues even after the professional relationship has ended. It means that any sensitive information obtained during the course of representation cannot be disclosed or utilized in a manner that would harm the former client, ensuring trust in the client-investigator relationship is maintained.

The second aspect of the answer includes that the investigator may represent another person with the former client's consent after consultation. This reflects ethical guidelines that allow for concurrent representation under specific conditions, provided the former client is fully informed and gives explicit consent. This ensures transparency and seeks to protect the interests of all parties involved.

Considering these two critical ethical principles, both aspects of the correct answer are valid and reinforce the importance of maintaining professional integrity while navigating the complexities of representation.