Two wrongs don't mean no crime was committed. No longer will a "violation" of a criminal's rights give them a free pass.
All crimes will be handled separately.
Even if an officer beats a confession out of a murderer there are two crimes, not a wash. The officer will be prosecuted for at least one crime. The murderer will still be prosecuted for murder. The confession can even be used, just in full context. The jury will be told how the confession was obtained. It will probably be worthless unless there was something in it that no one but the guilty knew at the time.
Why should a criminal get away with their crime because their rights were violated and an honest person doesn't get a Next Crime Free pass?
If an officer stops someone they suspect of murder and forces them to confess the honest person can only sue for police mistreatment. Why should the guilty person be able to gain any more?
Two crimes. Two charges. Two trials. Two guilty persons.
http://www.notesfromthefarm.com/article.php/20060626080552672