To you all flesh shall come

A brilliant Chief of Surgery and his team ensnare vampires, harvest their organs to donate or sell on the black market, then tag them like sharks and release them back into the wild. Encased within the 'pacetaker' attached to the heart are a toothpick and a monitor of the levels of human blood in the vampire's system. Their levels rise too high, and they get death by toothpick. It's a barbaric new method to keep vampires docile. Apparently, they've been on the honor system this whole time...