for construction in doing so. IV. EXPROPRIATION AND RESTRICTION OF OWNERSHIP RIGHTS Article 16 (withdrawal or restriction of ownership or other real rights in the construction of public communications networks) (1) The construction, installation, operation or maintenance of public communications networks and associated infrastructure in accordance with regulations shall be for the public benefit. (2) A public communications network must be planned so as to minimise disturbance to the real estate of another. (3) Ownership or other real rights to real estate may be revoked or restricted for the public benefit when required due to the construction, installation, operation or maintenance of a public communications network and associated infrastructure. (4) Ownership or other real rights to real estate shall be revoked or restricted under the procedure and in the manner laid down by the act governing the expropriation of real estate and the act governing real rights, unless this Act determines otherwise. (5) A network operator that wishes to carry out the works referred to in the first paragraph of this Article on, above or below the real estate of another may act as the eligible expropriator in an expropriation procedure or as the party entitled to easement in an easement procedure. (6) It shall be assumed that a decision in a procedure of expropriation or the establishment of easement for the benefit of a network operator is a matter of urgency within the meaning of the act governing the expropriation of real estate and the restriction of ownership rights. If the administrative body responsible for deciding such matters opts not to use the urgency procedure under the act governing the expropriation of real estate and the restriction of ownership rights, it must explain and justify its decision. Article 17 (networks serving the requirements of security, police, defence, and protection, rescue and relief services) The provisions of the previous Article shall also apply to electronic communications networks and associated infrastructure serving the requirements of security, police, defence, and protection, rescue and relief services. Article 18 (establishment of easement on real estate owned by entities of public law in the construction of electronic communications networks that are not public communications networks) (1) The construction, installation, operation or maintenance of electronic communications networks that are not public communications networks as referred to in Articles 16 and 17 of this Act, and of the associated infrastructure, on the real estate of entities of public law in accordance with regulations shall be for the public benefit. (2) The electronic communications network referred to in the preceding paragraph must be planned so as to minimise disturbance to the real estate of the entity of public law. (3) Ownership or other real rights to real estate owned by entities of public law may be encumbered by easement for the benefit of a legal entity or natural person providing electronic communications networks that are not networks as referred to in Articles 16 and 17