What items may working inmates possess while at their working assignments?

The items that working inmates may possess while at their working assignments must adhere to specific regulations and policies that ensure safety, security, and operational efficiency in detention settings. In this context, eyeglasses and a comb are practical and necessary items that can be approved because they serve essential functions for the personal care and well-being of inmates. Eyeglasses, for instance, facilitate vision correction, which is crucial for effectively performing work-related duties and ensuring safety. A comb also falls under personal hygiene, helping inmates maintain their grooming without posing any security risks.

In contrast, other items such as cell phones and personal music devices are typically prohibited in secure environments because they can be used for unauthorized communication or distractions. The uniform and identification badge, while essential for representing the inmate's role in the work program, are not individually assigned personal items they may possess. Hence, the correct answer focuses on a balanced consideration of practicality, security protocols, and the necessity of the items in maintaining both personal care and operational security.