I have written before, HERE, about police power abuse in the form of asset forfeiture laws and their enforcement. In that connection, I have come to believe that everyone should:
a] ALWAYS, at the earliest opportunity, ask a law enforcement officer why you were stopped on the highway or why you are being otherwise detained in order to get his reason on the record;
b] NEVER give consent to a police search of your vehicle, your home or other real property, or your person;
c] NEVER linger past the point at which the LEO acknowledges that the process related to his previously articulated reason for detaining you has ended, and if that point is not readily discernable, ask the LEO outright. Specifically, never respond to any questions asked beyond that point, no matter how innocuous they may seem.
If you wish to know one of the many reasons why I advocate this, click HERE.