In his inaugural address, Duterte acknowledged the critics at home and abroad who find his methods "unorthodox, verging on illegal." But as a lawyer and former prosecutor, he added, "I know what is legal and what is not. You mind your work, and I will mind mine."
The key here is that they were all 'suspects' and without due process, they are civilians killed in a spar with the police.
_Quis custodiet ipsos custodes?_
Who will watch the watchers? Authoritarianism is a slippery slope. While it could provide the semblance of 'quick fixes,' there has not been a single successful situation where this has led to long term solutions and peace.