In this September 6, 2018, photo, Portland Police K-9 Officer Shawn Gore gives commands to police dog Jasko, in Portland, Oregon. Jasko is wearing a new canine body camera on his back that Gore is testing out for the Portland Police Bureau, which currently outfits 10 dogs with body-worn cameras. Image Credit: AP

Milwaukee: Police dogs have always helped their human counterparts through their eyes and nose. Now some police dogs are getting their own backup - cameras that transmit live video.

The devices generally attach to dogs' backs on a vest and transmit video to a handler watching from a screen, possibly on their wrist or around their necks.

David Ferland is executive director for the United States Police Canine Association, a training programme for police dogs. He says departments generally use the cameras when dogs go out to look for suspects, missing people or explosives - for the dog's safety and for intelligence gathering.

Ferland doesn't have statistics but he suspects fewer than 5 per cent of agencies have the cameras because they are so expensive. Most cost between $6,000 and $20,000 (Dh22,037 and Dh73,459) .