Final answer:
The anti-piracy policy of the British crown in the 1600s was primarily motivated by economic and political factors.
Step-by-step explanation:
The anti-piracy policy of the British crown in the 1600s was primarily motivated by economic and political factors. The British government wanted to protect the economic interests of English merchants and colonial planters, as well as maintain political and economic strength. Lax enforcement of the Navigation Acts during King William's War increased smuggling and privateering, which posed a risk to the empire's economic health. To address these concerns, Parliament implemented measures to strengthen trade restrictions on the colonies.