Which duty is not typically assigned to the custodial force in a prison?

The duty that is not typically assigned to the custodial force in a prison is conducting disciplinary hearings. This task is usually designated to specialized staff, such as hearing officers or administrative personnel, who have the training and impartiality necessary to fairly evaluate inmate behavior and enforce disciplinary procedures. Conducting disciplinary hearings involves a level of legal and procedural knowledge to ensure compliance with institutional rules and regulations, as well as fairness to the inmates involved.

In contrast, the other duties mentioned are directly related to the custodial force's role in maintaining order and safety within the facility. Censoring offenders' items, escorting inmates, and inspecting security devices are all integral responsibilities of the custodial staff, who ensure that the physical environment of the prison remains secure and that inmates adhere to institutional policies. These duties require constant vigilance and the direct management of inmate behavior and security measures, which are core functions of the custodial force.