2 Dogs electrecuted, and an officer injured?!

I just read, two dogs got electrecuted to death and 1 was injured plus one officer was injured by touching the dogs metal collar probably trying to help it. They say that a wire from a TTC streetcar was messed up and it touched a metal pole and than it rained making the sidewalk charged with electricity. A 10 year old labradour got to a vet but the vet couldn't do something? I think it had to do with something that it was street caused or something and they didn't want to attempt anything for saftey purposes. Later that day they couldn't revive the dog. But I mean, seriously...putting yellow tape around something won't stop everything from getting to it. They should make like a foldable fence (wooden) that they can stand up so that no one can just go under it. When you buy a dog or something and want to guard an area so it can run around, they usually sell plastic/wooden fences that unfold so that things can't just get through withought a problem. I think that Police should use that to guard off the area while they need to. Just have a little door or something to get through.