Final Answer:
b. False.
Step-by-step explanation:
False. While obtaining written, signed, and dated consent is a good practice for documentation and clarity, it is not always a strict legal requirement for consent to be binding. The specific legal requirements for consent can vary based on jurisdiction and applicable laws.
In many situations, verbal consent or other forms of communication may be considered valid, depending on the context and legal framework. However, it is crucial to consider the specific laws and regulations governing the access to bank records for investigative purposes in the relevant jurisdiction. Consulting legal counsel is recommended to ensure compliance with applicable rules and to determine the most appropriate form of consent in a given situation.