<blockquote>Investigators in Lancaster, Calif., were granted a search warrant last May with a scope that allowed them to force anyone inside the premises at the time of search to open up their phones via fingerprint recognition, Forbes reported Sunday.

The government argued that this did not violate the citizens' Fifth Amendment protection against self incrimination because no actual passcode was handed over to authorities.</blockquote>
via <a href="http://www.dailyherald.com/article/20161022/business/161029726/">Using search warrants to get into fingerprint-locked phones</a>.