A police can't question a 3 year old child full-stop, a child that young may not be able to speak (especially if Autistic) let alone understand what they're being asked. Whether Autistic or not police wouldn't attempt to question a 3 year old child.
If the alleged abuse is about the parent then yes.
yes
This is not a question. A question must be asked in order to receive an answer.
Yes, but it's a better idea for a lawyer to be present.
Teachers and administrators can question kids. If a police officer is present or performing the questioning, a child has a right to both an attorney and their parent. Check your school district''s webpage and your state's code. For example, google "Michigan State Code, interrogation of a minor" and see what the age and rules are for your state.
No, a parent must be present.
Yes but it depends if it involves the parent
Yes a minor can be arrested. Once they are confirmed to be a minor, an advocate will be appointed to protect their rights.
Police can question anyone if they have the proper authority (e.g. warrant), but a parent or guardian is authorized to be present during questioning of a child.
If the question is an incriminating one then absolutely not. Example: Did you break the window next door? If the question isn't incriminating then yes. Example: Did you see where the robber ran?
Yes.
Absolutely!