Which of the following is NOT one of the Key Control Officer's duties?

The role of a Key Control Officer is primarily focused on the management and oversight of keys and locking devices within a facility. This includes responsibilities such as conducting a monthly inventory of keys, ensuring that each locking device has an accessible key, and accurately numbering and recording all keys. Each of these duties is crucial for maintaining security and order within the facility.

In contrast, conducting inmate headcounts falls outside the specific responsibilities of a Key Control Officer. Inmate headcounts are typically a duty of detention staff or officers responsible for supervising inmates and ensuring their safety, rather than being related to key management. Therefore, this task does not align with the primary functions of a Key Control Officer. Understanding the delineation of these roles is essential for operational efficiency within a detention facility.