‘You must be stupid’

Philippine President Rodrigo Duterte has declared he will never be tried by an international court for mass killings in his war on drugs, and vowed no let-up in a crackdown that he said he was winning and would see through "to the very end".

In a television interview with a celebrity pastor, the firebrand leader said the Philippine justice system was working fine, so it would be "stupid" to imagine he would let an international court put him on trial.

"I will only face, be tried or face a trial, in a Philippine court. Presided by a Filipino judge. Prosecuted by a Filipino ... I will not answer a Caucasian, asking questions, white man there. You must be stupid," he said late on Tuesday.

"I am a Filipino. We have our courts here... Shit. You have to bring me somewhere else? I would not like that. I have my country. It's working. I know it's working. Justice is working here."

His opponents argue otherwise and say police are killing with impunity, and that with an approval rating of about 80 percent, a super-majority in Congress and presidential appointees heading courts, commissions and investigative bodies, there is little chance of Duterte being impeached or prosecuted at home.

Duterte, 74, has previously said he was so committed to his war on drugs that he was prepared to be tried for crimes against humanity at the International Criminal Court (ICC) in the  Hague, or rot in jail there.

However, within weeks of an ICC prosecutor announcing in February 2018 that a preliminary examination was being conducted into the killings, Duterte ordered police not to cooperate, and then unilaterally cancelled the Philippines' ICC membership. The ICC examination continues, despite his withdrawal.