Shoplifting is on the rise. So are solutions.

At a clothing store in downtown Seattle, a woman approaches the exit during the busy lunch hour. A security guard smiles at her. But when she passes through metal detectors at the store entrance, security tags inside her shopping bag trigger an alarm.

“Ma’am?” says the security guard.

Without turning around, the woman starts running. The guard dashes after her and stops her on the street outside.