If you ever get into any trouble, you have some rights still. Some of these help you, and some do not. Some are:

Exclusionary Rule- No illegally obtained piece of evidence may be used in a court of law.

Counsel- an Attorney

Self-Incrimination- To cover a witness before a hearing.

Double Jeopardy- may not be tried twice for the same crime.

United States Government: Democracy in Action. Pages 398-405