14. Whenever any railway, canal or other public work, or any manufactory or commercial concern shall be carried on, or be in operation in any part of the country, and it shall appear to the Inspector-General that the employment of an additional police-force in such place is rendered necessary by the behaviour or reasonable apprehension of the behaviour of the persons employed upon such work, manufactory or concern, it shall be lawful for the Inspector-General, with the consent of the Government to depute such additional force to such place, and to employ the same so long as such necessity shall continue, and to make orders, from time to time, upon the person having the control or custody of the funds used in carrying on such work, manufactory or concern, for the payment of the extra force so rendered necessary, and such person shall thereupon cause payment to be made accordingly.