Doesn't apply, and this isn't the first opinion to come to that conclusion either. http://pilotonline.com/news/local/crime/police-can-require-cellphone-fingerp

Doesn't apply, and this isn't the first opinion to come to that conclusion either. http://pilotonline.com/news/local/crime/police-can-require-cellphone-fingerprint-not-pass-code/article_25373eb2-d719-5a6e-b677-656699a50168.html http://pilotonline.com/news/local/crime/police-can-require-c... 5th amendment appears to be restricted to what you know based on all available rulings thus far. A password would fall under "what you know."