SEC. 4. Proclamations. - Acts of the Regional Governor fixing a date or declaring a status or condition of public moment or interest, upon the existence of which the operation of a specific law or regulation is made to depend, shall be promulgated in proclamations which shall have the force of an executive order. SEC. 5. Memorandum Orders. - Acts of the Regional Governor on matters of administrative details or of subordinate or temporary interest which only concern a particular officer or office of the Government shall be embodied in memorandum orders. SEC. 6. Memorandum Circulars. - Acts of the Regional Governor on matters relating to internal administration, which the Regional Governor desires to bring the attention of all or some of the departments, agencies, bureaus, or offices of the Regional Government, for information or compliance, shall be embodied in memorandum circulars. Chapter 3 Powers of Eminent Domain, Escheat, Land Reservation and Recovery of Ill-Gotten Wealth SEC. 7. Power of Eminent Domain. - The Regional Governor shall determine when it is necessary or advantageous to exercise the power of eminent domain in behalf of the Autonomous Regional Government, and direct the Regional Attorney General, whenever he deems the action appropriate, to institute expropriation proceedings in the proper court. SEC. 8. Power to Direct Escheat or Reversion Proceedings. - The Regional Governor shall direct the Regional Attorney General to institute escheat or reversion proceedings over all lands in the ARMM transferred or assigned to persons disqualified to acquire land in accordance with law. SEC. 9. Power to Reserve Lands of the Public Domain and Patrimonial Properties belonging to the Regional Government. - (1) The Regional Governor shall have the power to reserve for settlement or public use, and for specific public purposes, any of the lands of public domain and patrimonial properties belonging to the Regional Government, the use of which is not otherwise provided by law. The reserved land shall thereafter remain subject to the specific public purpose indicated until otherwise provided by law or proclamation; (2) He shall also have the power to reserve from sale or other disposition, for specific public uses or purposes, any land belonging to the Autonomous Regional Government, the use of which is not otherwise provided by law, and thereafter such land shall be used for the purposes specified by such proclamation until otherwise provided by law. SEC. 10. Recovery of Ill-gotten Wealth. - The Regional Governor shall have the authority to direct the Regional Attorney General to institute proceedings in accordance with regional laws, against public officials or employees who have illegally acquired properties, to recover said unlawfully acquired properties from them or from their nominees or transferees. 26