The commissioned crime is a feature of modern London, and it is rarely that the mystery surrounding it is solved.

Let us look in for a moment at a well-known West End bar, much frequented by young men about town, racing men, and certain members of the prize-ring who are well in with the people who make a business of sport. Some of the habitués are gossiping and drinking at the bar or sitting at the little tables. Among them are men of good position in the sporting world, but there are also card-sharpers and tricksters. One or two are pugilists who go to race-meetings to look after or "mind" bookmakers who carry large sums of ready money about with them. Some of these men are respectable and doing well, and would not mix themselves up with a criminal "job." But there are others who are not too particular, provided there is a good chance of doing a "crooked" thing profitably and safely.

One of these men, who is so well in with a certain class of thieves that he can always get back for a consideration a valuable article of jewellery that has been stolen, is standing at the bar drinking, and apparently taking no notice of anyone. But as a matter of fact he is keeping his eye on a young "swell" who is sitting at a little table, talking loudly and boastingly to a man in evening dress who belongs to the cleverest gang of card-sharpers in London.

The young "swell" has come into possession of a fortune, and is seeing life. He is plunging on the turf, and playing cards for large stakes. The sharp is going to ask him to his flat—quite a first-class flat in the West End—and he is going to be "rooked" of a large sum of money.

The man leaning against the bar is studying this young fellow. He has only been put on the job that night, and has been told to come to this bar and make himself thoroughly acquainted with the features of the quarry.

The man who has got a "flat" wants to keep his "find."

He doesn't want him to fall into the hands of a rival gang. So he has put a spy on to watch, and inform him if any overtures are made to the "pigeon" by any other members of the "flash mob."

The spy has studied his man carefully, and will know him again anywhere. So he finishes his drink and leaves the bar. He is instantly followed by a well-dressed man of about forty.

Out in the street the well-dressed man comes abreast of the spy, and says, "Jack, I've got a job for you." Details follow, and the spy is commissioned to find two or three men who will brutally assault a person named at the first convenient opportunity. A plan is agreed upon, and terms arranged. So much for the go-between, so much down to the men engaged, and a large sum to divide among them when the assault has been brought off. Particulars of the person who is to be assaulted, details of his habits, and the place and time at which he is most likely to be caught alone, are given, and the conspirators separate.

Let us now look in at a dirty, ill-lighted beer-house in a gloomy street in one of the most criminal areas of London.