It won't work. Look at the drug wars in Mexico and central America. A lot more people dealing drugs kill each other. It's a much more dangerous game over there. Has the possibility of getting murder stop it? No. there's a lot of money to be made.
I could see a militia being created in response to this war.
Its hard to clean a country that drugs is rampant. you can buy drugs like vegetables and meat in public market. drug cartels are afraid no one because high government officials before and high ranking authorities are involved. When Pres Duterte assumed office last year he started to clean but some users resist to be arrested thats why it will end in a bloody operations because drug users are armed. The drug war in Philippines is not perfect there are also collateral damage. but atleast he have sa strong courage to clean the country.