DO NOT TALK TO THE POLICE. Period. If you are under investigation the last thing you want to do is utter one word to the cops who are investigating. Even providing info that seems innocuous can turn into a problem and come back to bite you in the ass. Get this phrase down cold:
"I have nothing to hide and plan to cooperate fully, but I need to talk to my attorney about how to proceed."
And then shut yer pie hole. This video is geared a bit more toward how to handle interactions with the police after a defensive shooting, but pertains equally to any interaction with the cops if your are the subject of investigation. It is long, but I promise you it is WELL worth the time:two
http://www.youtube.com/watch?v=6wXkI4t7nuc