The Detectives have a special department assigned them at the Police Head-quarters in Mulberry street. There they may be found when not on duty, and the Chief, when not in his office, is always represented by some member of the corps. They are kept quite busy. The strangers who visit the city throw an immense amount of work upon the Detectives. These people often get drunk over night, and frequent houses of bad repute, where they are robbed. They naturally invoke the aid of the police in seeking to recover their property. Frequently, by making a plain statement of their cases, they recover their money or valuables, through the assistance of the Detectives. Sometimes the stolen property cannot be regained at all. These people, as a rule, refuse to prosecute the thieves, and declare their determination to submit to the loss rather than endure the publicity which would attend a prosecution. Thus the Detectives are forced to compound felonies. The injured party refuses to prosecute, and the Detective knows that to make an arrest in the case would simply be to take trouble for nothing. Consequently, if the plunder is returned, the thief is allowed to escape without punishment. None but those whose duty it is to search out and punish crime, can tell how much the administration of justice is embarrassed, how much the officers of the law are hampered, and how greatly their labors are increased by the refusal of respectable persons to prosecute criminals. These refusals are not confined to those who seek to avoid such an exposure as is mentioned above. Merchants and bankers who have been robbed by thieves, seem to care for nothing but the recovery of their money or property. They will even sacrifice a portion of this to regain the remainder. The Detective may fairly work up his case, and fasten the crime upon the perpetrator, but he is not sure of meeting with the cooperation upon the part of the injured person that he has a right to demand. The thief seeing that an arrest is inevitable, may offer to return a part or the whole of the property on condition of his being allowed to escape. In ninety-nine cases out of a hundred the proposal is accepted. The merchant recovers his property, and immediately exerts himself to secure the escape of the thief. He refuses to prosecute the wretch, or if the prosecution is carried on in spite of him, his evidence amounts to nothing. He has protected his own interests, and he cares nothing for society or justice. He throws his whole influence against both, and aids the thief, in going free, to commit the same crime in another quarter. The Detectives complain, and with justice, that it is of no use for them to arrest a burglar where the stolen property can be recovered. If persons who have been wronged in this way would refuse all proposals for a compromise, and would endeavor to secure the punishment of the offender, the criminal class would be wonderfully thinned out, and