Question [Q] Can Google block a device?


If asked can Google block a device by its serial number to prevent it from ever being allowed to use Google services?

If so, does that mean Google can help users locate a device if it is connected to a WiFi? whether from existing user account or from a new Google account?

This doesn't only apply to a stolen devices but in case a seller decide to screw around with a buyer of a used devices.

Would appreciate some feedbacks.

Thank you.
htc magic, galaxy s (i9000m), galaxy nexus, nexus 7, nexus 10, nexus 4 (should be the baseline performance for android), nexus 5, Moto G (backup)