The police are investigating a felony case, they knock on your door and want to ask you a few questions "downtown"; are you obligated at all to go with them? If you say: "I have nothing to say" can they still detain and handcuff you and take you down town for an interview? ..... also even with a subpeana, and you continued to say "I have nothing to say", could they charge you with obstruction? or some other charge they could find?

