Since Denovan's arrival in London he had received but little assistance at Bow Street. The runners were irritated at the unorthodox way in which the case had been managed. Sayer, who had been concerned in the restitution, flatly refused to have anything to do with the business, or to go to Edinburgh to give evidence. This was presently explained by another runner, the famous Townsend, who hinted that Sayer's hands were not clean, and that he was on very friendly terms with Mackoull's wife, a lady of questionable character, who was living in comfort on some of her husband's ill-gotten gains. Indeed, Sayer's conduct had caused a serious quarrel between him and his colleagues, Lavender, Vickery, and Harry Adkins, because he had deceived and forestalled them. Denovan was, however, on intimate terms with Lavender, and succeeded in persuading him to assist, and through him he came upon the portmanteau sent from Welwyn, which had been seized at the time of Huffey White's arrest. Huffey had been taken in the house of one Scoltop, a blacksmith in the Tottenham Court Road, the portmanteau and a box of skeleton keys being also seized. Both were now found in a back closet in the office at Bow Street, "under a singular collection of rubbish, and were actually covered by Williams's bloody jacket, and the maul and ripping iron with which the man Williamson had been murdered in Ratcliff Highway." The portmanteau contained many papers and notes damaging to Mackoull, and in the box were housebreaking implements, punches, files, and various "dubs" and "skrews," as well as two handkerchiefs of fawn colour, with a broad border, such as the three thieves often wore when in their lodgings in Glasgow immediately before the robbery. How Mr. Denovan found and won over Scoltop is a chief feather in his cap. His success astonished even the oldest officers in Bow Street. Scoltop was the friend and associate of burglars, and constantly engaged in manufacturing implements for them. He had long been a friend of Mackoull's and had made tools for him, among them those used for the robbing of the Paisley Union Bank, a _coup_ prepared long beforehand, as we have seen. The first set of keys supplied had been tried on the bank locks and found useless, so that Scoltop had furnished others and sent them down by mail. These also were ineffective, as the bank had "simple old-fashioned locks," and Mackoull came back from Glasgow, bringing with him "a wooden model of the key hole and pike of the locks," which enabled Scoltop to complete his job easily. "I wonder," said Scoltop to Mr. Denovan, "that the bank could have trusted so much money under such very simple things." Scoltop would not allow any of this evidence to be set down in writing, but he agreed to go down to Edinburgh and give it in court, and to swear also to receiving the portmanteau addressed in the handwriting of Mackoull.