In 1844 he became still more famous by his exertions in detecting the 'Running Rein' fraud, and in conducting the 'Orlando' trial. There can be no doubt that the success of that affair was in great measure attributable to his indefatigable activity, ingenuity, and perseverance. The attorney in the cause was amazed at the ability and dexterity he displayed, and said there was no sum he would not give to secure the professional assistance of such a coadjutor. He gained the greatest credit in all quarters by his conduct throughout this affair, which was afterwards increased by his manner of receiving a valuable testimonial, subscribed for the purpose of honouring and rewarding his exertions: he refused to accept anything for himself, but desired the money might be applied towards the establishment of a fund to reward decayed and distressed servants of the turf, which was eventually denominated 'The Bentinck Fund.'[73] He was exceedingly self-willed and arrogant, and never could endure contradiction; and whatever he undertook he entered into with an ardour and determination which amounted to a passion. As he plunged into gaming on the turf, he desired to win money, not so much for the money, as because it was the test and the trophy of success; he counted the thousands he won after a great race as a general would count his prisoners and his cannon after a great victory; and his tricks and stratagems he regarded as the tactics and manoeuvres by which the success was achieved. Not probably that the money itself was altogether a matter of indifference to him: he had the blood of General Scott in his veins, who won half a million at hazard, and the grandson most likely _chassait un peu de sa race_. But to do him justice, if he was 'alieni appetens,' he was 'sui profusus.' Nobody was more liberal to all his people, nor more generous and obliging in money matters to his friends, and I am inclined to think that while he was taking to himself the mission of purifying the turf, and punishing or expelling wrongdoers of all sorts, his own mind became purified, and (though I do not know it) I should not wonder if he looked back with shame and contrition to all the schemes, plots, and machinations to which, in the ardour of his racing pursuit, he had been a party. What makes me think that it was less the base desire of pecuniary gain than the passionate eagerness of immense success which urged him on, is the alacrity with which he cast away his whole stud, at a moment when it promised him the most brilliant results and most considerable profits, as soon as another passion and another pursuit had taken possession of his mind; one in which there was not only no pecuniary benefit in view, but the occupation of which obliged him to neglect his turf concerns so entirely that he lost a great deal of money in consequence.