Under Sir William Scott, arguably the greatest Judge of its long history, the High Court of Admiralty was during the French Revolutionary and Napoleonic Wars one of the most influential legal bodies in the land. It dealt not only with the technicalities of seizures in prize, but with the numerous related issues of nationality, neutrality, sovereignty and jurisdiction at a time when all those matters were frequently fluid and their application uncertain.

The law that the Court sought to administer was not the common law of England, but international law, or the law of nations as it was then (perhaps more accurately) called. The procedures of the Court, situated at Doctors’ Commons, were in contested cases adversarial rather than investigative, thus following British legal tradition, but most of the evidence was documentary and witnesses were seldom called in person. Scott himself was at pains to point out the principles on which he was working; early in his incumbency he said:

In consequence, Scott's judgments often had much to say on the law of nations as then understood, and many of the principles he enunciated have survived, in customary or codified form, to this day. That is not to say that he took no account of English interpretations of the law, where differences existed; on such matters as the Rule of the War of 1756 or the 1753 Opinion of the Law Officers on the Silesian Loan, he followed English practice rather than making concessions to continental contentions based upon the principle of ‘free ships free goods’.

Fortunately, all Scott's major judgments survive, as reported by three authorities: Christopher Robinson, Thomas Edwards and John Dodson. The reporters were clearly aided by Scott's habit of writing down his judgments in full. He was, by some accounts, not a fluent extempore speaker and this has been a benefit to history. While the judgments which follow are, technically, already published work, they are available only in specialised libraries and it is believed that they fall therefore within the criteria of the Navy Records Society.

They are, moreover, supplemented here by much previously unpublished material, nearly all from the National Archive.