(f) Local social welfare development officer; (g) Barangay chairman; (h) Any law enforcement officer; (i) At least three (3) concerned responsible citizens residing in the place where the violation occurred; or (j) Any person who has personal knowledge of the circumstances of the commission of any offense under this Act. Section 7. Appointment of Special Prosecutors. - The Department of Justice (DOJ) shall appoint or designate special prosecutors to prosecute cases for the violation of this Act. Section 8. Jurisdiction. - Jurisdiction over cases for the violation of this Act shall be vested in the Family Court which has territorial jurisdiction over the place where the offense or any of its essential elements was committed pursuant to Republic Act No. 8369, otherwise known as "Family Courts Act of 1997". Section 9. Duties of an Internet Service Provider (ISP). - All internet service providers (ISPs) shall notify the Philippine National Police (PNP) or the National Bureau of Investigation (NBI) within seven (7) days from obtaining facts and circumstances that any form of child pornography is being committed using its server or facility. Nothing in this section may be construed to require an ISP to engage in the monitoring of any user, subscriber or customer, or the content of any communication of any such person: Provided, That no ISP shall be held civilly liable for damages on account of any notice given in good faith in compliance with this section. Furthermore, an ISP shall preserve such evidence for purpose of investigation and prosecution by relevant authorities. An ISP shall, upon the request of proper authorities, furnish the particulars of users who gained or attempted to gain access to an internet address which contains any form of child pornography. All ISPs shall install available technology, program or software to ensure that access to or transmittal of any form of child pornography will be blocked or filtered. An ISP who shall knowingly, willfully and intentionally violate this provision shall be subject to the penalty provided under Section 15(k) of this Act. The National Telecommunications Commission (NTC) shall promulgate within ninety (90) days from the effectivity of this Act the necessary rules and regulations for the implementation of this provision which shall include, among others, the installation of filtering software that will block access to or transmission of any form of the child pornography. Section 10. Responsibility of Mall Owners/Operators and Owners or Lessors of Other Business Establishments. - All mall owners/operators and owners or lessors of other business establishments shall notify the PNP or the NBI within seven (7) days from obtaining facts and circumstances that child pornography is being committed in their premises. Provided, That public display of any form of child pornography within their premises is a conclusive presumption of the knowledge of the mall owners/operators and owners or lessors of other business establishments of the violation of this