Police at the helm of the Philippine war on drugs were given top posts in the national force on Thursday, indicating no let-up in a brutal crackdown that has caused international alarm, and defined Rodrigo Duterte’s 21-month presidency. The job of national police chief was given to Oscar Albayalde, a strict disciplinarian who has been in charge of Metro Manila. He was succeeded as commander of the capital police by Camilo Cascolan, the architect of the controversial operational plan of the anti-drug campaign, “Double Barrel”. About 4,100 people have been killed by police in the Philippines since July 2016 in what the authorities said were shootouts during anti-narcotics operations. Human rights groups believe the death toll has been understated, and accuse the authorities of executing suspects and staging crime scenes.