What tool is used to hold an offender's wrists and ankles together?

The correct answer, which includes all options, reflects the various tools used to secure an offender's wrists and ankles together, each serving specific purposes in different situations.

Handcuffs are the most commonly recognized tool for restraining an individual's wrists. They typically consist of two metal rings linked by a chain or bar, making them effective for controlling a person's movements.

Flex cuffs, often made of plastic or polymer, are lightweight and can be quickly applied. This makes them a popular choice in situations requiring rapid deployment or in circumstances where traditional handcuffs might not be readily accessible.

A waist chain, which can also secure both the wrists and ankles, is often used to connect the arms to the waist. This tool provides additional security and is frequently employed in transportation scenarios to ensure the offender remains contained.

This varied set of tools allows law enforcement and corrections personnel to adapt to different security needs, ensuring the safety of both the offender and the personnel involved, hence affirming that all options are valid tools for restraining an individual.