How surveillance tech led police to accuse the wrong person

Most people never expect a knock on the door from a police officer to flip their life upside down. Yet that is exactly what happened to Chrisanna Elser in the Denver area of Colorado, near the small towns of Bow Mar and Columbine Valley.

An officer from the Columbine Valley Police Department arrived at her home and accused her of stealing a $25 package from a porch in the neighboring town of Bow Mar, Colorado.

The officer said surveillance technology pointed directly to her vehicle...