Here's the latest installment in Instructables' series of HOWTOs inspired by my young adult novel Little Brother, which tells the story of young people who use homebrew technology to restore their civil liberties after a police crackdown on terrorism.

This week's installment: What to do if the police stop you.

1. What you say to the police is always important. What you say can be used against you, and it can give the police an excuse to arrest you, especially if you badmouth a police officer.

2. You must show your driver's license and registration when stopped in a car. Otherwise, you don't have to answer any questions if you are detained or arrested, with one important exception. The police may ask for your name if you have been properly detained, and you can be arrested in some states for refusing to give it. If you reasonably fear that your name is incriminating, you can claim the right to remain silent, which may be a defense in case you are arrested anyway.

3. You do not have to consent to any search of yourself, your car or your house. If you DO consent to a search, it can affect your rights later in court. If the police say they have a search warrant, ASK TO SEE IT.

4. Do not interfere with, or obstruct the police, as you you can be arrested for it.

