Though a certificate carries along with it no testimonial of good behaviour, and certifies nothing but that the person belongs to the parish to which he really does belong, it is altogether discretionary in the parish officers either to grant or to refuse it. A mandamus was once moved for, says Doctor Burn, to compel the churchwardens and overseers to sign a certificate; but the court of King’s Bench rejected the motion as a very strange attempt.
The very unequal price of labour which we frequently find in England in places at no great distance from one another, is probably owing to the obstruction which the law of settlements gives to a poor man who would carry his industry from one parish to another without a certificate. A single man, indeed, who is healthy and industrious, may sometimes reside by sufferance without one; but a man with a wife and family who should attempt to do so, would in most parishes be sure of being removed, and if the single man should afterwards marry, he would generally be removed likewise. The scarcity of hands in one parish, therefore, cannot always be relieved by their superabundance in another, as it is constantly in Scotland, and, I believe, in all other countries where there is no difficulty of settlement. In such countries, though wages may sometimes rise a little in the neighbourhood of a great town, or wherever else there is an extraordinary demand for labour, and sink gradually as the distance from such places increases, till they fall back to the common rate of the country; yet we never meet with those sudden and unaccountable differences in the wages of neighbouring places which we sometimes find in England, where it is often more difficult for a poor man to pass the artificial boundary of a parish, than an arm of the sea or a ridge of high mountains, natural boundaries which sometimes separate very distinctly different rates of wages in other countries.