manila group philippine lawyers wednesday file injunction supreme court try stop president rodrigo duterte bloody war drug call illegal campaign let police kill circumvent legal procedures government directive fierce 15-month-old crackdown permit police negate neutralise target effectively grant license kill suspect users dealers without gather evidence build case lawyers say practice compile list drug personalities encourage citizens anonymously provide name tantamount draw hit list petition say call judicial intervention thousands case filipinos kill police present war drug wag government go stop illegal drug crime corruption jose manuel diokno chairman free legal assistance group flag tell news conference result kill people especially poor petition come public scrutiny intensify duterte signature campaign insist stop regardless bloodshed say prepare go jail protect filipinos crimes fuel addiction duterte reject criticism notoriously bellicose public remark interpret police veil instructions kill drug users impunity philippine national police pnp spokesman dionardo carlos say police welcome file petition supreme court elaborate though filipinos largely supportive duterte iron-fisted approach recent opinion poll indicate public doubt drug war board effective government say analysts say unease campaign contribute duterte rat decline pnp data show 3,900 people kill operations police say arm suspect violently resist arrest duterte opponents activists dispute say executions cover-ups commonplace police deny petition flag comprise around 200 pro-bono human right lawyers file behalf three people whose relatives kill police flag also represent two men testify senate part allege death squad kill drug dealers criminals duterte behest davao city mayor long presidency duterte dismiss allegation nonsense late petition seek compel pnp interior ministry halt campaign want kill examine national bureau investigation nbi would take charge evidence include gun police say use victims say house-to-house visit anti-drugs police follow unverified tip-offs unknown informants base evidence argue police intent persuade suspect surrender would kill anyone refuse cooperate deny involvement government war drug short-cutting justice system dispense justice barrel gun petition say philippine lawyers ask supreme court halt 'illegal war drug