The enlarged state of Society, the vast extent of moving property, and the unexampled wealth of the Metropolis, joined to the depraved habits and loose conduct of a great proportion of the lower classes of the people; and above all, the want of an appropriate Police applicable to the object of prevention, will, after a careful perusal of this work, reconcile the attentive mind to a belief of the actual existence of evils which could not otherwise have been credited.--Let it be remembered also, that this Metropolis is unquestionably not only the greatest Manufacturing and Commercial City in the world, but also the general receptacle for the idle and depraved of almost every country; particularly from every quarter of the dominions of the Crown--Where the temptations and resources for criminal pleasures--Gambling, Fraud and Depredation almost exceed imagination; since besides being the seat of Government it is the centre of _fashion, amusements, dissipation and folly_. Under such peculiar circumstances, while immorality, licentiousness and crimes are known to advance in proportion to the excessive accumulation of wealth, it cannot fail to be a matter of deep regret, that in the progressive increase of the latter the means of checking the rapid strides of the former have not been sooner discovered and effectually applied. It is, however, earnestly to be hoped that it is not yet too late.--Patriots and Philanthropists who love their country, and glory in its prosperity, will rejoice with the Author in the prospect, that the great leading features of improvement suggested and matured in the present Edition of this Work will ultimately receive the sanction of the Legislature. May the Author be allowed to express his conviction that the former Editions of this book tended in no small degree, to remove various misconceptions on the subject of Police: and at the same time evidently excited in the public mind a desire to see such remedies applied as should contribute to the improvement of the Morals of the People, and to the removal of the danger and insecurity which were universally felt to exist? An impression it is to be hoped is generally felt from the example of the Roman Government, when enveloped in riches and luxury, that National prosperity must be of short duration when public Morals are too long neglected, and no effectual measures adopted for the purpose either of checking the alarming growth of depravity, or of guarding the rising generation against evil examples. It is by the general influence of good Laws, aided by the regulations of an energetic Police, that the blessings of true Liberty, and the undisturbed enjoyment of Property are secured.