The prisoners had undergone several examinations before the magistrate at Worship-street, when on Tuesday, the 29th of December, a piece of intelligence was conveyed to Mr. Hardwick which left no doubt of their having also been engaged in one or more very extensive robberies of jewels which had just before occurred. It was stated by Lea, that notwithstanding the pains he had taken to search the room which had been occupied by Jourdan and Sullivan at the Red Lion at the time of their apprehension, he now found that he had not done so effectually. Since the prisoners had been in custody at that office, infinite pains had been taken by their friends to procure admission to the room which they had occupied at the Red Lion. Persons, apparently recently arrived from a journey, would drive up in a coach and demand to be supplied with lodgings; but although this and many other ruses were resorted to, evidently with an object, the precise nature of which could not be discovered, all was in vain, and Mr. Proctor, the landlord, refused to admit any strange person to reside in his house. On Monday, the 28th of December, a Mr. Hanson, an old customer at the Red Lion, arrived in town, and, upon his presenting himself to the landlord, he was immediately shown to the long vacant apartment. A fire was kindled by the servant, and, in the course of the evening, the attention of Mr. Hanson was attracted to some brilliant substance which he perceived amidst the flames. With the tongs he drew it forth, and he perceived it to be a brooch, set with splendid pearls, which, however, was much injured by the fire. Further search presented to his view other articles of a similar description; and, in the course of a short time, he picked from the embers two other brooches, seven large brilliants, seven emeralds, one or two of which were of very great value, and about four dozens of small diamonds. This discovery, it may be supposed, excited great astonishment; but, upon its being communicated to the landlord of the house, the mystery was at once solved by his recollection of the former inmates of the apartment. Lea was instantly sent for; and, on his instituting a further examination, he found in a bag, suspended in the chimney, three massive gold chains of foreign manufacture, which he immediately recognised as answering the description of some chains which had been stolen from the warehouse of Messrs. Hall and Co., on the Custom-house Quay, in the previous month of February, when property of the value of nearly 8000l. was carried off. A renewed investigation brought other articles to light, and the anxiety of the strange visitors to the house was at once accounted for, while, at the same time, strong grounds of suspicion were excited that Jourdan and Sullivan had been parties to that robbery, and had secreted the produce of their depredation during their stay at the Red Lion, lest any accidental circumstance should reveal their possession of it.

It would be useless to go through the whole of the evidence which was from time to time adduced at the police-office against the prisoners. A great variety of minute facts were proved, which traced the possession of some of the stolen notes to them; but all doubts which might have existed as to their participation in the robbery, and as to the real circumstances of its commission, were at length satisfied by the confession of Mr. William Huey, a landing-waiter of the Custom-house, to whom also some notes had been traced. This statement was first made to Mr. J. Manning, surveyor-general of customs, and was confined to a declaration on the part of Huey, that he had received the notes which he was proved to possess at a gambling-house, No. 1, Leicester-square. Subsequently, however, a more minute and more truthful confession was made by him, in which he gave the fullest account of all the proceedings antecedent to and attendant upon the burglary. This confession led to the apprehension of Mr. Henry Mott and Mr. William Seale, who also held situations in the Custom-house; and, after repeated examinations, in the course of which an enormous mass of evidence was collected, all four prisoners were at length fully committed for trial, on Friday, the 12th of February, 1836.

At the trial of the prisoners at the Central Criminal Court, which commenced on Wednesday, the 2nd of March, Huey was examined at length as to the circumstances of the robbery.

He said that he was a landing-waiter at the Custom-house, and had held that situation since the year 1827. Soon after his appointment he became acquainted with the prisoner Seale, whose office was similar to his own. After about six months, however, they quarrelled, and it was not until June 1834 that their difference was made up. They were then stationed at the London Docks; and after business they were in the habit of frequenting various public-houses. The Duke of Sussex at Peckham, The Royal Mortar, and the Castle in the Old Kent-road, were often visited, but they occasionally went to the Three Kingdoms near the Custom-house. Shortly after their reconciliation, Seale mentioned to him a design which existed to “crack” the Custom-house; and on the same afternoon they met the prisoner Mott at the Three Kingdoms; he was a clerk in the king’s warehouse. Mott spoke of the subject as if it were a familiar one to him, and he advised that they should delay the intended robbery until an opportunity should present itself, when they might obtain a larger booty than they could then procure. This was agreed to by all parties, and although they subsequently frequently spoke upon the subject, the execution of their plan was deferred. In the following August, the witness went to see his father at Drogheda. He had previously been introduced to Jourdan and Sullivan, and he knew that the object of their introduction was, that they might assist in the project which they had in view. He met them in Dublin, and they inquired whether he had any means of assisting them in robbing the Custom-houses at Drogheda and at Dublin. He answered in the negative, and returned to London the same day; and on the 4th of September he resumed his occupation. He soon after met Mott and Scale at the London Docks, and the discussion of the subject of the robbery was resumed. After a short time they proceeded to Jourdan’s lodgings, at No. 3, East-street, Walworth, and acquainted him with their plans. He made various inquiries with regard to the contents of the strong box in the office of the Receiver of Fines, upon which it had been determined their attack should be made, and on the next day went with Sullivan to inspect the place. At a subsequent meeting they declared that it would be easy to commit the robbery; and Sullivan suggested that the best means of effecting their purpose would be to fit the locks with false keys. Mott said that he could procure impressions of one of the keys,—that of the outer door; and at a meeting which they afterwards held, he produced the key of which he had spoken, saying that he had taken it from the desk of Mr. Billing, in the king’s warehouse, who was out on leave. An impression of it was taken in wax by Sullivan, from which subsequently a skeleton key was made. The assistance of a fifth person was now spoken of, and Seale introduced a man named William May, or Morgan, (a thief, and the former companion of Jourdan and Sullivan). At the next meeting Sullivan produced the skeleton key, and said, that he and Jourdan had tried it and found that it would fit, but it was not strong enough, and a new and firmer key was ordered to be prepared. Seale then also showed them some padlock keys, one of which he suggested would open the padlock with which the door was fastened; but after impressions of them had been taken, and trials made with skeleton keys made from the model, it was found that none of them belonged to the lock which they desired to open. A suggestion was then made, that the best way to commit the robbery would be by “stowing away,” by which was meant, hiding one of the party in the house, who could, undisturbed, secure the booty and then make his escape. May volunteered to conceal himself, and a proposal was made that they should again inspect the place in order to ascertain whether this could be done. The king’s sale was now approaching, and Jourdan said that he should like to know what would be the probable amount of the contents of the box. This, it was observed, might be easily ascertained. One of the party could buy a lot at the sale, and going to pay for it, he could see what money was in the chest, by presenting a note of such an amount as that Mr. Walsh would not be likely to be able to give change without going to the safe. This was agreed to; and a lot of rum having been purchased for 11l., Jourdan took a 50l. note to pay for it. On the 26th of November he informed his associates of his success in the project which he had undertaken. He said, that on his presenting the 50l. note, Mr. Walsh felt his pockets, and looked into his drawers, but finding that he had not got sufficient change, he went to the iron-chest. Having only one key, he was obliged to wait until the person who kept the other came down stairs; (it is the custom to have a double lock to the iron safes of public institutions, so that they cannot be opened except with the concurrence of two persons, each of whom has a key). He then took out a large cash-box, which he could only move with both his hands, and on its being opened there appeared to be about 5000l. in it at least. Jourdan gave his own name and address to be indorsed on the note which he paid; and having received the change, he went away satisfied with the observation he had made. Mott censured him for giving his own name, and observing that all the particulars were written in a book, it was agreed that when the robbery was effected, the book should be destroyed, by the leaves being cut out and burned. The final plans were then arranged, and it was decided that May should go to the Custom-house at a little before four o’clock accompanied by Jourdan and Sullivan, and that in the confusion which usually prevailed at the time of shutting the offices, the former should enter the Receiver’s Office and conceal himself behind the door. On the next morning at nine o’clock, Jourdan and Sullivan were to be again in waiting, and having seen all safe, they were to give a signal to May, so that he might quit the place when the watchmen had opened the doors. Mott was also to assist in this design by keeping the clerks in his office, where they went to sign the appearance-sheet. If May got clear off, they were all to meet at Scale’s house at Peckham on the same morning, to divide the booty. These arrangements being completed, they separated, and the witness remained away from business next day, on the pretended ground of ill-health. In the afternoon, Seale, and subsequently Jourdan and Sullivan, called on him and told him, that May had been safely “lodged;” that they had all walked into the passage together, and in the confusion had “flashed” an umbrella, under cover of which May entered the office. They afterwards waited on the esplanade for ten minutes to see that all was right, when seeing the doors locked, they went away. On the next morning, the 28th, witness went to Peckham, and meeting Seale, they went together to the Waterman’s Arms, which commanded a view of the road by which Jourdan and the others must go to them. They remained there until they saw them coming, and then they went and met them, and they all proceeded to Seale’s house together: Mott was not present. May then produced the money from his pocket, and it was divided into six equal parcels: it consisted of 4700l. in notes, 122l. in gold, and about 50s. in silver. May detailed to them the manner in which he had committed the robbery. He said, that as soon as he was locked in, he set to work: he found the key which opened the Receiver’s lock to the chest, and employed it; but he was compelled to break open the other lock. Having done so, he took out the money and put it into his pockets. He next tore out the leaves from the book, and he now produced them. One of them bore the name “Leary, East-lane, Walworth,” and that with the rest was burned. The whole party then tossed for choice of the lots of money, because some contained more gold than others; and the selection having been made, Jourdan and Sullivan claimed something for expenses. A 20l. note and some silver were paid them, as well as the 50l. note marked “Leary,” and they with May went away. Seale then took the three remaining shares up stairs, saying, that he should send them out of town; and on the same evening he said that they were sixty or seventy miles off. In about a month afterwards, however, he told the witness that they were at Leicester, and he went and fetched them. The lots were then counted over, and the share of each was 745l. in notes. The witness further stated, that he disposed of all the notes under 20l. in amount to Jourdan at 20l. per cent. discount, and subsequently all under 100l. in value upon the same terms; and that having done so, he concealed the remainder in Camberwell churchyard, where they remained for several months. Seale then introduced a person who undertook to dispose of some of those which were left, on the Continent; and a portion of the notes was given to him, and he brought back cash. Seale took away what was left of his money, and the witness retained 900l. in three notes of the value of 300l. each. These he concealed in the panelling of one of the doors of his house, by boring a hole with a centre-bit, and then having introduced the notes, filled up the remaining space with a cork; and on his apprehension he disclosed the place of their concealment, and they were seized by the officers.

On his cross-examination, the witness declared that he had no object in making this disclosure, but that of saving his friends from disgrace. He did not desire to screen himself from punishment; but having committed so heinous a crime, he felt called upon to repair the mischief he had done so far as he was able.

In the course of this and the following days, a vast body of testimony was produced, which proved the transmission of a great part of the stolen notes to the Continent, and their negotiation there: the intimate connexion and acquaintance between the prisoners and Huey about the time of the robbery was also shown, and a great variety of other corroborative evidence was adduced.

The prisoners declared that Huey’s story was untrue, and had been invented by him to screen himself; and attempts were made to show that at various periods of the transaction Jourdan and Sullivan had been at places which forbade their implication in the robbery. Other witnesses gave Mott and Seale a good character; but the jury, on Thursday night, found all the prisoners “Guilty,” but recommended Mott and Seale to mercy.

On Tuesday the 8th of March, the prisoners received sentence of transportation for life; Jourdan and Sullivan being informed that they would be sent to a penal settlement, where they would be compelled to undergo the most severe and painful labour; while Mott and Seale were told that upon their arrival in the colony to which they were about to be sent, they also would be severely punished, by their being worked in road-gangs.

The distressing nature of Seale’s position was rendered doubly painful by the sudden death of his wife on the Saturday after his conviction. The wives of all four prisoners were allowed a last interview with them on that day in Newgate. One of those who availed herself of the privilege was Seale’s wife, who went there soon after ten o’clock on the above morning. She had a long interview with her husband, and appeared very much affected on being apprised by him that it was probable he would be transported for life. She afterwards proceeded home; but had scarcely entered the house where she had been lodging since her husband’s incarceration, when she dropped down and almost instantly expired.

The convicts were subsequently conveyed to the penal settlements, where they were immediately placed in the positions of painful punishment which had been described to them by the learned judge at the time sentence was passed upon them. Reports afterwards reached England that Sullivan had escaped from custody immediately upon his arrival in Sydney. It appears that he secreted himself on board a Dutch vessel bound for England. But the period during which he retained his freedom was short; for the captain discovering him, put back to Hobart Town, and he was conducted to a place called Goat Island, from which no subsequent effort enabled him to retreat.