Can the police interrogate a mental ill and mental retard person without an attorney or read them their Miranda rights
They HAVE to read them their Miranda Rights, but they can be questioned without an attorney if the wish not to have one...
yeah until its proven that they are mentally unstable then yes.
No. They cant do that. They can be sued if they do.
Whether they 'can' isn't as important as whether they 'should even bother'. Lawyers will destroy that testimony anyway. Why - did ya get busted?