Not true until you are arrested. If you voluntarily spout off to LEO's, what you state could become the basis for a criminal prosecution against you. Just ask Harold Fish what talking to LEO's without an attorney present got him. Miranda rights are given at the time of arrest. The DA in the case based the charges on alleged discrepancies in the timeline that Fish gave to authorities that in his opinion didn't add up. His own words used against him led to a conviction that was overturned by the appeals court. They even passed a retroactive law applicable to Harold Fish due to the outrage of his conviction. Just don't talk without a competent attorney who understands self defense cases.
http://www.myfoxphoenix.com/dpp/news...sed_07_21_2009
http://azdailysun.com/news/local/art...470e1b916.html