Electronic bracelets and phones that report your whereabouts, text messages if you stray too far from quarantine and digital detectives tracking where you’ve been — Asian countries have embraced innovative, if somewhat invasive, tech to counter the coronavirus pandemic.

When Hong Kong stylist Declan Chan flew home from Zurich earlier this week he was greeted by officials who placed an electronic device on his arm.

The wristband was connected to an app that he had to install on his phone as he headed into two weeks of compulsory self-quarantine at home.

It allows authorities to check his location as Hong Kong tries to halt fresh infections from people returning from overseas after two months of making impressive headway against its own outbreak.