I found that predators are afraid of a human with a broom or mop and is yelling at them. I got a fox to drop and chicken and two hawks to never ever come back.
We were talking about keeping dogs out. For hawks, you need a roof. It can be anything, just so long as it forms a net. Doesn't need...
The four strands is what we used for the lamb nursery (highest ground in the pasture, so all livestock, including chickens, were housed there in the wet spring). The rest of the pasture was 3 wires. Wires will not keep out small dogs who just jump between the bottom and middle wires. It won't...
When I was a kid our next door neighbor had a Dobermann, and a Siberian Husky. I would go with a Dobie, but never a husky. She was a quiet, graceful, killing machine that could run like the wind.
You handled that nicely, calling the police right away.
I'm sorry about the loss of your poor chickens. I would get electric netting to keep other dogs away from your chickens.