Still no certainty about legality of forced biometric phone unlocks in US

Speaking to a reporter in the U.S., a law professor recently said he doesn't use biometric locks on his phone because it's possible that police could force a scan when investigating a crime.

Passcodes remain relatively safe from compelled police access under the Constitution's Fifth Amendment preserving a person's right not to incriminate themselves. Judges and legislators have yet to find similar consensus on biometrics, however.

The professor, Matthew Tokson at the University of Utah, who raised the sanctity …

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