Project Coast was a top-secret chemical and biological weapons (CBW) programme instituted by the apartheid-era government of South Africa in the 1980s. Project Coast was the successor to a limited postwar CBW programme, which mainly produced the lethal agents CX powder and mustard gas, as well as non-lethal tear gas for riot control purposes. The programme was headed by the cardiologist Wouter Basson, who was also the personal physician of South African Prime Minister P. W. Botha.