Final answer:
The court of appeals overturned Alvarado's conviction primarily due to two reasons: the potential coercion of Alvarado's confession and the established precedent that minors require additional legal protections.
Step-by-step explanation:
Justice Kennedy, in the case of Alvarado, mainly focused on whether Alvarado's rights were respected during his custody and if his confession was indisputably voluntary. The Court of Appeals overturned Alvarado's conviction due to two key factors.
Firstly, the court believed that Alvarado's confession had been coerced. Kennedy underlined the importance of examining the situation from the subject's view when considering if a reasonable person would have felt that they were in custody, a new precedent set with the ruling of this case.
Secondly, they emphasized that minors require additional legal protections, given their lack of experience and understanding of legal procedures, which can significantly influence their responses during police interactions.
It's not explicitly mentioned that Alvarado felt he was under arrest, nor that additional protections were utilized by the police for Alvarado. Thus, options B and C would be the correct answers to check accordingly.
Learn more about Alvarado's Conviction