Surveillance cameras permeate modern life. Mounted in convenience stores, retail outlets, bars, clubs, ATMs and elsewhere, silent observers record everything from the mundane to the criminal. The cameras serve a dual function as both deterrent and instant legal record. In light of the police shooting of unarmed Michael Brown in Ferguson, Missouri, national attention has focused on wearable cameras for police officers. For the (less lethal) weapon manufacturer Taser, there is opportunity in this civic need.