He just kill all people who are involved in drug. You don't solve problems just to murder all who don't fit you ideally country in his eyes. A country without drugs don't exist it will always be part of the world.
You couldn't say that DU30 is the one who's killing drug addicts. Only 50% of those are proven that was killed during the drug raid. As far as i know as i quote it " Suspects tend to fight so the police operative should defend their self which is not a crime". It as also alleged that most of the extrajudicial killings were made by syndicates.
Wasn't he the guy who literally compared himself with hitler? He looks a tad bit crazy to me, not sure what is normal up there in Asia? Killing simple drug addicts seem a bit unreasonably to me aswell, but i have really no idea how bad the situation there is, i mean i am sure he says these things with a well-thought reason behind it. Basically killing your own civilians..