The above quote from an interesting post by Charles Kenville on the Iowa Champion advising that "under no circumstances do you talk to the police."  More from the post:

The reasons people decide that they will talk to the police are varied. People are taught from a young age to obey police.  They think that if they don't talk they will "look guilty". Some people, frankly, are guilty but think they can "out-smart" the officer. Whatever the reason, they talk to the police. This is a bad, bad, bad idea.  The Miranda warning says it all. Anything you say WILL be used against you.  There is no maybe about it.  In all of my years of criminal law practice, if there is one thing that I have learned, it is that a defendant's statements to the police are the most powerful piece of evidence a prosecutor can have.  DNA is fine, but nothing really makes a jury perk up their ears as a defendant who "confessed".