Final answer:
It is true that most jurisdictions mandate the presence of a guardian or counsel during juvenile police interrogations, backed by legal precedents set by landmark cases like Miranda v. Arizona.
Step-by-step explanation:
The statement is true; most jurisdictions require a parent, legal guardian, or counsel to be present during a police interrogation for juveniles. Significant legal cases such as Escobedo v. Illinois and Miranda v. Arizona have set precedents in this area. According to Miranda v. Arizona, the police must advise criminal suspects of their rights under the Constitution to remain silent, to consult with a lawyer, and to have one appointed to them if they are indigent.
Additionally, if the suspect states the wish to remain silent, the police interrogation must stop. The Miranda rights, which must be read to suspects before interrogation, cover this directive, ensuring suspects are aware of their right to remain silent, that anything they say can be used against them, and their right to have legal counsel before and during questioning.