Gellung Warl, Victoria's First Peoples' representative body, sent Corrections Minister Ros Spence, Attorney-General Sonya Kilkenny and First Peoples Minister Gabrielle Williams a letter on Tuesday calling for the legislation's immediate withdrawal. Under the bill, a prisoner's right to an hour of open air each day would become subject to "operational considerations" including inmate safety, prison management and poor weather. "These changes are operational decisions to ensure access to open air can continue to be managed safely," she said. The 39-year-old Wiradjuri woman said her isolation, and occasional restrictions on her access to open air, has undermined her mental health and set back her rehabilitation prospects. Victoria's justice department is appealing the ruling, with a hearing set for October 23 and a cross-appeal filed by Marrogi.