It has been suspected Bass may also have planned to engage in contraband trade in Chile. Spain reserved the import of goods into her colonies for Spanish ships and Spanish merchants. But the colonists needed more than they could supply and shortages and heavy taxation caused high prices, encouraging an extensive illegal trade with foreign vessels. Port Jackson was described by some 19th-century historians as a base for such smuggling Britain's strained relationship with Spain at that time meant British authorities were unconcerned.