Who is responsible for completing a headcount before taking over the unit?

The answer is correct because the incoming officer is responsible for completing a headcount before taking over the unit. This process is crucial for ensuring the safety and security of both the inmates and staff. By conducting a headcount, the incoming officer can verify that all individuals within the unit are accounted for, which helps prevent potential incidents such as escapes or disturbances.

The headcount also provides the incoming officer with an accurate understanding of the current population and any special circumstances that may need attention, such as medical issues or behavioral concerns of certain inmates. This responsibility emphasizes the need for vigilance and accountability in jail operations, ensuring that each shift is not only seamless but also secure.

Considering other possibilities, the outgoing officer might initially perform a headcount before departure, but the ultimate responsibility lies with the incoming officer to confirm the count and take over the unit confidently. The option suggesting that both officers do this together or that it is not mandatory undermines the critical nature of this operation in maintaining jail security and safety protocols.