Many police departments give special training to interrogators with regard to the Miranda warning; specifically, how to influence a suspect's decision to waive the right.
In some jurisdictions, a "detention" differs at law from an "arrest", and police are not required to give the Miranda warning until the person is arrested for a crime.
He noted that the majority did not state outright that the Miranda warning is a constitutional requirement, but merely that it is constitutionally based.
