It’s also the most unlikely explanation of all, that phones brought in communicated with the ones in custody to reboot them. Even if it was a security feature to reboot phones under certain conditions, which is very likely TBH graphene OS does this, the best implementation isn’t going to be relying on other phones randomly passing near by, it’s going to be self-managed by the phone that reboots.
It’s also the most unlikely explanation of all, that phones brought in communicated with the ones in custody to reboot them. Even if it was a security feature to reboot phones under certain conditions, which is very likely TBH graphene OS does this, the best implementation isn’t going to be relying on other phones randomly passing near by, it’s going to be self-managed by the phone that reboots.
A remote command from some random phone to reboot does sound like the a wonderful vector for malware, though