Can a minor be questioned without a parent present?

Question Details:

My 16 year-old was arrested and charged with several things. The cop was asking her questions without me there. She was with a friend and he just turned 20. They searched his phone and found some pictures of her wearing nothing and now they are arresting him for child pornogophy. Also, they found a text from my daughter to him saying she would perform a sex act on him and they both are getting charged for sexual battery. Important Notice