We, the undersigned commissioners, appointed on behalf of our respective governments, to inquire into, and report upon, the unfortunate occurrence of the 6th of April instant, at Dartmoor prison, having carefully perused the proceedings of the several courts of inquiry instituted immediately after that event, by the orders of Admiral Sir John T. Duckworth and Major General Brown respectively, as well as the depositions taken at the coroner’s inquest upon the bodies of the prisoners who lost their lives upon that melancholy occasion; upon which inquest the jury found a verdict of justifiable homicide; proceed immediately to the examination upon oath, in the presence of one or more of the magistrates of the vicinity, of all the witnesses, both American and English, who offered themselves for that purpose, or who could be discovered as likely to afford any material information upon the subject, as well as those who had been previously examined before the coroner, or otherwise, to the number in the whole of about eighty. We further proceed to a minute examination of the prisons, for the purpose of clearing up some points, which upon the evidence alone, were scarcely intelligible; obtaining from the prisoners, and from the officers of the depot, all the necessary assistance and explanation; and premising, that we have been from necessity compelled to draw many of our conclusions from statements and evidence highly contradictory, we do now make upon the whole proceedings the following report: During the period which has elapsed since the arrival in this country of the account of the ratification of the treaty of Ghent, an increased degree of restlessness and impatience of confinement appears to have prevailed amongst the American prisoners at Dartmoor, which, though not exhibited in the shape of any violent excess, has been principally indicated by threats of breaking out if not soon released. On the fourth of this month in particular, only two days previous to the events, the subject of this inquiry, a large body of the prisoners rushed into the market-square, from whence, by the regulations of the prison, they are excluded, demanding bread, instead of bircuit, which had on that day been issued by the officers of the depot; their demands, however, having been then almost immediately complied with, they returned to their own yards, and the employment of force on that occasion became unnecessary. On the evening of the sixth, about six o’clock, it was clearly proved to us, that a breach had been made in one of the prison walls, sufficient for a full-sized man to pass, and that others had been commenced in the course of the day near the same spot, though never completed.