A letter from J Freemantle at the Customhouse London to the Lords Commissioners of the Treasury, reporting on investigations into alleged fraudulent smuggling practices in the Isle of Man. The document includes related correspondence from 1764 regarding inquiries conducted by Thomas Wilson, a customs investigator sent to the Island, and reports from Joseph Burrow (Collector of Whitehaven) detailing alleged involvement of government cutters and barges in smuggling operations. The Treasury ultimately deemed the complaints 'frivolous and groundless' based on Surveyor General Lutwidge's assessment.