When 19-year-old Dylan Nobel was fatally shot by police in Fresno last month, the incident was caught by eyewitnesses using smartphones and a police body cam.

The lipstick-sized device, produced by Taser, has seen an upsurge in sales, after the shooting of Michael Brown in Ferguson, Missouri almost two years ago.

Activists calling for more transparency in law enforcement have welcomed the cameras and now an article in the latest edition of Bloomberg Businessweek asks– Will a camera on every cop make everyone safer?

Karen Weise wrote the piece and when A Martinez spoke with her, she started by asking how Taser, best known for stun guns, got into the body camera business.

To hear the full segment, click the blue play button above.