![Dylan Voller speaking at the Royal Commission on Monday.](/web/20161212045243im_/http://www.theage.com.au/content/dam/images/g/t/9/9/t/h/image.related.wideLandscape.460x259.gt99gm.png/1481517355156.jpg)
Teen 'forced to defecate in his pillowcase' while in detention
A teenager who was tear-gassed, spit hooded and shackled to a restraint chair in the Northern Territory's youth prison system says he was regularly "punished" by not being given access to food, water and toilets.