Because it was an ingenious way to avoid regulations. From 1696 to 1725, the Board of Trade sought to impose more efficient royal control over the colonies. But colonists continued to resist. They lobbied against the various Navigation Acts, challenged them in court, and resisted them by smuggling, bribery, fraudulent bookkeeping, and even violence. The fifty or so British customs officials struggled to police hundreds of American vessels operating along a thousand miles of jagged coastline.