The NSW government will have new powers to crack down on the black market sale of precious local seafood. The NSW government will have new powers to crack down on the black market sale of precious local seafood. The test would help protect the working environment of Fisheries officers and ensure natural resources were “better protected from fraud or criminal interests”, Ms Moriarty said. ”Mr Chen said the black market trade also had environmental impacts, contributing to overfishing and threatening the long-term sustainability of valuable fisheries. “The ability to take action against people knowingly buying fish from illegal sellers will create a bigger deterrent for people involved in black market sales.”