Which of the following does NOT constitute an authorized way to receive a subpoena?

The correct answer is that receiving a subpoena by fax does not constitute an authorized way to receive one. Subpoenas are formal legal documents that require authenticity and proper delivery methods to ensure that the recipient is fully informed of the legal action being initiated. The methods outlined in this question involve direct and secure forms of communication, such as delivering in person or sending through certified mail, which creates a verifiable record of receipt.

Receiving a subpoena in person ensures that the individual is directly made aware of the document and its contents. Certified mail offers a similar level of reliability, as it provides proof of delivery and requires a signature upon receipt, adding to the legal confirmation that the individual has received the notification.

In contrast, a phone call from law enforcement lacks the formalities and documentation that a subpoena requires. It does not provide a tangible record or proof of notification, which is crucial in legal proceedings. Thus, faxing a subpoena fails to meet the legal requirements for formal service and is not considered an authorized method of receiving such important legal documents.