I recommend against using biometric identification
> And to be clear, a court in the US cannot force you to give up your passcode. That passcode exists in your head, and yours alone. It is your property, and won’t be used to incriminate you or strong-arm access to your data unless you voluntarily give it up.<p>While technically true this is false in practice. While they can't force you to provide your passcode they can force you to unlock your phone. Francis Rawls has been in prison for two years now over refusing to decrypt a hard drive.[1] The same principle applies to phones. If a judge finds you in contempt-of-court they can imprison you indefinitely.<p>1: <a href="https://arstechnica.com/tech-policy/2017/09/judge-wont-release-man-jailed-2-years-for-refusing-to-decrypt-drives/" rel="nofollow">https://arstechnica.com/tech-policy/2017/09/judge-wont-relea...</a>