The Criminal Investigation and Detection Group (CIDG) has formally served a subpoena to Senator Ronald “Bato” dela Rosa in connection with the ongoing investigation into the government’s controversial anti-drug campaign during the Duterte administration. Dela Rosa, who served as chief of the Philippine National Police (PNP) from 2016 to 2018, was one of the key officials who led the implementation of the administration’s intensified war on drugs. The campaign drew both local