What is required for a written waiver of Miranda rights?

The correct choice highlights that a written waiver of Miranda rights must include the juvenile's own signature. This requirement emphasizes the necessity for the juvenile to personally acknowledge and consent to the waiver of their rights. The Miranda warning protects individuals, especially juveniles, by ensuring they are aware of their rights to remain silent and to have legal counsel present during questioning. By signing the waiver, the juvenile demonstrates their understanding and voluntary choice to give up those rights.

This signature is vital as it reflects the juvenile's comprehension of the information provided in the Miranda rights. It ensures that they are not coerced and that their decision to waive their rights is made knowingly, which aligns with the legal protections meant to safeguard minors during interrogations.

In this context, the other options do not satisfy the legal requirements for a valid waiver. For instance, while parental consent may be important in certain situations, it is not sufficient on its own without the juvenile's own acknowledgment. Similarly, having legal representation present or needing approval from a judge are not standard conditions for a written waiver; the signature of the juvenile themselves is the central requirement.