Spoilation of evedence
Forensic examiners are able to bypass passcodes on some [Android] devices using a variety of forensic techniques. For some other types of Android devices, Google can reset the passcodes when served with a search warrant and an order instructing them to assist law enforcement to extract data from the device. This process can be done by Google remotely and allows forensic examiners to view the contents of a device.
If Google can reset the device remotely, why can't anyone else? And if anyone else can, how can the Prosecution claim that anything on the phone was placed by the defendant.