What can I do if I'm approached by a police officer on a criminal charge?

If you are approached by a police officer or agent on the street regarding any criminal matter, you should immediately ask him or her if you're being detained.  If they answer "no," then you are free to leave.  If they answer "yes, you are being detained," then you should immediately exercise your right to remain silent and request to speak with your attorney before answering any further questions.