Which statement about restraint devices in animal care is true?

The statement that restraint devices must be justified in protocols reflects a key principle in the ethical treatment of animals in research settings. This requirement is grounded in the need to ensure that any use of restraint is necessary for the scientific objectives and that it minimizes potential discomfort or distress to the animals involved.

In animal research, justification for using restraint devices involves providing a clear rationale within research protocols to ensure they are employed only when absolutely necessary. This aligns with the overarching principles of the Three Rs: Replacement, Reduction, and Refinement, which guide humane animal research practices. Therefore, a researcher must demonstrate that the benefits of using restraint outweigh any potential risks and that all alternatives have been considered.

This requirement helps uphold ethical standards in animal care and use, ensuring that researchers are not using restraint arbitrarily or without a clear scientific purpose. Thus, it protects animal welfare and reinforces responsible research conduct.