@kiwijames
Hmm, don't see why it should. Certain traps perhaps, but not traps designed to kill, or designed to humanely capture for later relocation/disposal. Kill traps may occasionally maim, or just catch an animal by a limb, but the legal difference here rightly lies in the deliberate intent of the person setting the trap.
Individuals spreading a poison that they reasonably expect to cause a cruel death should have no legal protection just because they are "following orders" of a government department... we've heard that one somewhere before. They should at least be politely and respectfully taken to task for their deliberate animal cruelty. There is no legal protection against your own conscience waking up and smelling the coffee.
Bookmarks