(4) All legal proceedings instituted in Ireland by or against the Commissioners or any officers of Customs or Excise, or the Treasury, shall, if so required by any party in such proceedings, be heard and determined before the judges of such Exchequer Division, or some or one of them, and any appeal from the decision in any such legal proceeding, if by a judge, shall lie to the said division, and if by the Exchequer Division, shall lie to the House of Lords, and not to any other tribunal; and if it is made to appear to such judges, or any of them, that any decree or judgment in any such proceeding as aforesaid, has not been duly enforced by the sheriff or other officer whose duty it is to enforce the same, such judges or judge shall appoint some officer to enforce such judgment or decree; and it shall be the duty of such officer to take proper steps to enforce the same, and for that purpose such officer and all persons employed by him shall be entitled to the same immunities, powers, and privileges as are by law conferred on a sheriff and his officers. (5) All sums recovered in respect of duties of Customs and Excise, or under any Act relating thereto, or by an officer of Customs or Excise, shall, notwithstanding anything in any other Act, be paid to the Treasury, and carried to the Customs and Excise account under this Act. _Police._ [Sidenote: Police.] =21.=--The following regulations shall be made with respect to police in Ireland:-- (_a_) The Dublin Metropolitan Police shall continue and be subject as heretofore to the control of the Lord-Lieutenant as representing Her Majesty for a period of _two years_ from the passing of this Act, and thereafter until any alteration is made by Act of the Legislature of Ireland, but such Act shall provide for the proper saving of all then existing interests, whether as regards pay, pensions, superannuation allowances, or otherwise. (_b_) The Royal Irish Constabulary shall, while that force subsists, continue and be subject as heretofore to the control of the Lord-Lieutenant as representing Her Majesty. (_c_) The Irish Legislature may provide for the establishment and maintenance of a police force in counties and boroughs in Ireland under the control of local authorities, and arrangements may be made between the Treasury and the Irish Government for the establishment and maintenance of police reserves. PART II. _Supplemental Provisions._ Powers of Her Majesty. [Sidenote: Power over certain lands reserved to Her Majesty.] =22.=--On and after the appointed day there shall be reserved to Her Majesty-- (1) The power of erecting forts, magazines, arsenals, dockyards, and other buildings for military or naval purposes;