While I’d want to turn off biometrics if I thought I was in a risky situation:
- pin required on restart
- Lock Screen is pretty fast
- must importantly sensitive apps and settings use a secondary authentication, including in app switching
So they could force me to unlock it, but probably wouldn’t take the time to hunt down all the places there’s secondary authentication. So damage would be partly mitigated
My kids school “boxes” phones if you’re caught using them or they interrupt class. They lock them inside a clear plastic case and let you carry that.
This avoids liability because the kid still has possession of their phone and can still see an emergency text or call. The can’t interact with the phone but can get a teacher to unlock if there’s a visible emergency text