What is a temporary restraining device that is vital for the safety of both the officer and the subject?

Handcuffs serve as a temporary restraining device that is critical for ensuring the safety of both law enforcement officers and the individuals being detained. They effectively limit the subject's ability to use their hands, which can prevent potential harm to the officer or others during interactions that can escalate or become unpredictable.

Designed for quick application, handcuffs allow officers to secure a subject efficiently while maintaining control over the situation. Their use is widely recognized and standardized in law enforcement procedures, making them a reliable option in various scenarios.

In contrast to other options, handcuffs are specifically engineered for human restraints, offering a balance of security and comfort, minimizing the risk of injury during transport or control. Other restraining devices, such as leg restraints, flex cuffs, and zip ties, may have their own applications but are not as universally used or designed predominantly for quick, effective restraint of a person's hands.