[JRandomFreeper]

Caller ID is easily spoofed. Instructions are available on the internet.

/johnny

[TigersEye]

Shouldn’t the police dig just a little deeper before sending out the riot squad?

[wrench]

POTTS lines aren’t secure either. Anyone between your house and the telephone switching equipment (miles from the location) can make a call that really appears to originate at your house, no spoofing involved.