Paolo Duterte tests negative for illegal drugs

Nograles and Paolo Duterte undergo hair follicle drug tests

Quad-Comm permits Paolo Duterte to attend next hearing

VP Duterte dismisses recent quad-comm hearing allegations: a "political harassmaent"

House quad-comm to invite Duterte son, son-in-law for alleged involvement in drug smuggling

Ex-BOC officer links Paolo Duterte, Mans Carpio in 2018 shabu shipment