QUEZON CITY, June 24, 2016 (Xinhua) -- A policeman gathers the fingerprints of a drug addict during a police operation at Camp Karingal in Quezon City, the Philippines, June 24, 2016. Around 750 drug users and pushers surrendered to authorities during the Quezon City Police District's (QCPD) anti-drug campaign on Friday. The police operation aims to encourage drug addicts to surrender to authorities and pledge themselves to stop their activities involving illegal drugs. (Xinhua/Rouelle Umali)