I can't find reference to it in our "regs", but both MdDave and Washington Hunter gave good examples of what was discussed at a hunter safety course I sat through with my son. This topic came up and we happened to have a GW as a guest speaker. He said if first blood is fatal blood, that person is entitled to the deer...even if shot again by someone else before it dies. On the other hand, if the first shot is a wounding shot only and someone else follows up with a kill shot...the kill shot gets the deer.