My father in law raises sheep. Anyway the standard MO is you shoot dogs on site on the property. They get in time to time and usually we catch em in the act. Gun em down and if they have tags we sue the owners for damages and always get paid. Anyway one year he stopped counting at 170 kills by august. That was one bad year though. Common problem for livestock owners. In VA you can react.
As in Virginia, same in Washington State. Shoot on sight!