Indigenous teen Cleveland Dodd 'let down': WA premier

Cleveland Dodd died in hospital after harming himself in the youth wing of WA's Casuarina Prison. (HANDOUT/SUPPLIED)

West Australian Premier Roger Cook says the justice system needs to do better following the death of an Indigenous teenager who self-harmed in the youth wing at an adult prison.

Officers discovered 16-year-old Cleveland Dodd in the Unit 18 youth detention facility at Perth's Casuarina Prison in the early hours of October 12, after he contacted them through the intercom.