On Thu, 14 Jul 2016 18:31:18 -0400, jmcquown >
wrote:
>> Very often if there is a crime police go door to door collecting those
>> videos.
>>
>Okay, then I don't know what you were talking about someone ringing
>a doorbell with a camera.
>
>Jill

The camera is mounted so part of the drive/garden/pathway and door are
covered. Just like security cameras in stores. It allows the person
inside to see exactly who, how many, are ringing the door bell.