How must keys be passed according to jail security protocols?

Keys must be passed hand to hand in accordance with jail security protocols to ensure accountability and prevent unauthorized access. This method allows for a direct transfer between personnel, which enhances security by minimizing the chances of keys being dropped, lost, or improperly handled. Hand-to-hand transfers ensure that both the person giving and the person receiving the keys are present and can verify that the exchange is legitimate, reducing the risk of keys falling into the wrong hands.

Other methods, like passing keys through a slot in the door, would not provide the same level of oversight and control, making it easier for keys to be misused. Tossing keys between officers could lead to accidents or loss of control over the keys, potentially compromising security. Using an intercom system does not facilitate the physical exchange of keys, making it impractical for a situation requiring them to be visibly and securely handed over.