Which of the following groups is NOT an authorized free rider?

The group that is not considered an authorized free rider is private security personnel. In the context of transportation systems and their operations, free riders typically refer to individuals who are allowed to use public transportation services without paying a fare, often due to their employment roles or specific agreements between their organization and the transit authority.

Correction officers, auxiliary police officers, and city employees usually have designated arrangements that permit them to ride the transit system for free as part of their job responsibilities. These arrangements are often established to facilitate their duties related to law enforcement, public safety, and municipal functions.

In contrast, private security personnel do not typically have such an agreement with transit authorities, as they are not part of the public service or governmental framework that usually governs free rider privileges. Their role is distinct from that of law enforcement or municipal employees, and thus they do not receive authorization to ride for free in the same manner. This distinction highlights the difference in the nature of their employment and the lack of official partnership with the transit system, which precludes them from being classified as authorized free riders.