People vs. Macasaet, et. al., GR 196094, March 5, 2018:
"The rules on venue of criminal actions for libel were also restated m Agbayani, thus:
1. Whether the offended party is a public official or a private person, the criminal action may be filed in the Court of First Instance of the province or city where the libelous article is printed and first published.
2. If the offended party is a private individual, the criminal action may also be filed in the Court of First Instance of the province where he actually resided at the time of the commission of the offense.
3. If the offended party is a public officer whose office is in Manila at the time of the commission of the offense, the action may be filed in the Court of First Instance of Manila.
4. If the offended party is a public officer holding office outside of Manila, the action may be filed in the Court of First Instance of the province or city where he held office at the time of the commission of the offense."
http://sc.judiciary.gov.ph/pdf/web/viewer.html?file=/jurisprudence/2018/march2018/196094.pdf
1. Whether the offended party is a public official or a private person, the criminal action may be filed in the Court of First Instance of the province or city where the libelous article is printed and first published.
2. If the offended party is a private individual, the criminal action may also be filed in the Court of First Instance of the province where he actually resided at the time of the commission of the offense.
3. If the offended party is a public officer whose office is in Manila at the time of the commission of the offense, the action may be filed in the Court of First Instance of Manila.
4. If the offended party is a public officer holding office outside of Manila, the action may be filed in the Court of First Instance of the province or city where he held office at the time of the commission of the offense."
http://sc.judiciary.gov.ph/pdf/web/viewer.html?file=/jurisprudence/2018/march2018/196094.pdf