This man is already under arrest.

The judge who issued the warrant believes that Jones is Jack Andrews and that Jack Andrews stole the pearls from the Countess Ahmberg.

Of course, the prisoner will have a formal examination, when he may defend himself as best he can, but we haven't made this move without being sure of our case, and it will be rather difficult for him to escape the penalty of his crimes, clever as he is." "Clever ?" It was Jones himself who asked this, wonderingly.
Le Drieux bowed to him with exaggerated politeness.
"I consider you the cleverest rogue in existence," said he.

"But even the cleverest may be trapped, in time, and your big mistake was in disposing of those pearls so openly.

See here," he added, taking from his pocket a small packet.