The "squeeze" is taken by pressing the key in a piece of specially prepared wax. With this impression in his possession, the intending thief can have a similar key made at once. He sometimes comes at the favourable hour armed, not only with a key of the safe or cabinet in which the jewel-case is kept, but with the key of the front door as well. He lets himself in quietly while the family are out, and the servants are downstairs, goes straight to the room in which the jewellery is, unlocks the safe or cabinet, and is out of the house with the plunder in a few minutes. By obtaining a "squeeze" of a key in an office in which a number of clerks were actually sitting at the time, a safe was once opened while in transit on the South-Eastern Railway, which contained bullion to the value of many thousands of pounds, and the whole of it was successfully carried away. Some of the biggest jewel-robberies that take place in London are planned, not as they used to be, in low dens and thieves' kitchens or taverns of evil reputation, but in luxuriously furnished houses and elegant flats. When you have made a five or ten thousand pound haul, it is much safer to drive home to a good address with the plunder in your smartly appointed brougham than go off with it in a four-wheel cab to a shabby neighbourhood across the water. The tools necessary for the job can also be carried with more safety in a brougham, and if you have an elegantly attired lady beside you dressed in ball costume, and blazing with jewellery, no policeman is likely to stop your carriage at 4 a.m. to inquire if you have been breaking into a jeweller's shop or a diamond merchant's office. The expert bank-robber of to-day opens an account at the bank he intends to victimize. Sometimes he has been a customer of the establishment for months before he risks the trick by which the clerk of another bank doing business at the counter is robbed of thousands of pounds' worth of notes. The expert does not do the stealing himself; he merely engages the clerk behind the counter in conversation, and covers the operations of a confederate. This confederate is occasionally attired in the correct costume of a bank-messenger. The profession of crime to-day has in its ranks men whose manners are those of the diplomatist, whose get-up is faultless, and whose fertility of resource would enable them to make a good living by honest means. But they have become captains of crime, and they prey upon society with a keen enjoyment of the sport.