Dublin Police Act, 1859

When the office of commissioner of police is vacant, Lord Lieutenant may appoint an assistant commissioner.

2. Whenever a vacancy shall occur in the office of commissioner of police, it shall be lawful for the Lord Lieutenant, if he shall so think fit, to appoint an assistant commissioner to act with the remaining commissioner, and from time to time to appoint successors to such commissioner and assistant commissioner; and such assistant commissioner shall take the oath required to be taken by the commissioners of police, and shall thereupon, with the remaining commissioner, who shall be styled henceforward “the chief commissioner,” possess and be subject to all the powers, duties, and provisions of or affecting the commissioners of police, but subject to the provisions herein-after contained.

[S. 3 rep. 37 & 38 Vict. c. 23. s. 7.]