According to 8 CFR § 287.4, who is prohibited from exercising subpoena authority?

The correct option identifies non-supervisory Border Protection Agents as those who are prohibited from exercising subpoena authority according to 8 CFR § 287.4. This regulation outlines the scope and limits of authority granted to various officials within the Department of Homeland Security and related agencies.

In this context, the distinction between supervisory and non-supervisory roles is critical. Supervisory agents are typically granted broader authority, including the ability to issue subpoenas, due to their higher level of responsibility and oversight within the agency. This aligns with the overall organizational structure where supervisory officials have the authority to make decisions that non-supervisory agents do not.

On the other hand, immigration officers generally have specific duties and powers related to immigration enforcement, often without the need for subpoena power. While supervisory Border Patrol Agents hold certain authoritative privileges, non-supervisory agents are expressly restricted from this capacity, thereby limiting their ability to compel the production of evidence or testimony in investigations.

Understanding these regulatory nuances helps clarify the hierarchy of responsibilities and the level of authority assigned within the agency, illustrating the importance of supervisory roles in enforcing laws related to immigration and border protection.