In Response to Remote Evidence Deletion by Criminals
Facial Recognition Enforced at 20–50cm If Unlock Request Is Refused

The Japanese police have introduced an investigative method that forces suspects to use facial recognition to unlock their smartphones if they refuse to do so voluntarily. This measure is a response to new evidence destruction techniques involving the remote deletion of data.

Images of Osaka police officers to aid in understanding the article. Getty Images

Images of Osaka police officers to aid in understanding the article. Getty Images

View original image

According to the Asahi Shimbun on August 12, the Osaka Prefectural Police sought and executed a physical examination warrant to unlock smartphones during a raid on locations related to the illegal employment brokerage group 'Natural.'


The warrant specifies that suspects must first be requested to unlock their smartphones. If they refuse, their face must be held still at a distance of 20 to 50 centimeters from the smartphone for about one second.


The police judged that there was an urgent need to access the seized smartphones, explaining, "The app developed by this organization enables users to remotely delete exchanged data."


Until now, physical examination warrants had mainly been issued to find needle marks in drug cases or investigate injuries on suspects in assault cases. There had been no prior cases of using such warrants for unlocking smartphones.


Some have raised concerns that forcing suspects to provide biometric information could lead to investigative overreach, as it is difficult to physically compel a suspect to unlock a phone if they refuse to use facial recognition.


An officer from the Kansai region stated, "Even if the warrant allows for facial recognition, if a suspect closes their eyes or turns their face away, unlocking is not possible," and drew a clear line, saying, "It is unthinkable to physically force someone to open their eyes."



It has been noted that this investigative method has not yet spread throughout the entire Japanese police force.


This content was produced with the assistance of AI translation services.

© The Asia Business Daily. All rights reserved. Unauthorized AI training and use prohibited.

Today’s Briefing