In the cell, she took off her pantyhose, bundled it into a ball then set fire it on fire. Dey then sat on the floor and watched the fire spread up the cell's wall.
She took photos of the fire on her cellphone and sent them to an associate. A short time later, the custody officer returned to Dey's cell with a female staff member and noticed the smoke and fire.
Dey was removed from the cell and staff used a fire extinguisher, but it was the wrong type. A hose was used to douse the fire, but the embers reignited a short time later. Smoke had spread into two adjacent cells from which two prisoners were then evacuated.
The Fire Service was called and firefighters removed some wall lining to ensure all embers were extinguished. In explanation, Dey said she was angry at being led down to the cells and lit the fire because she had been labelled mentally ill.
Her lawyer, Nick Leader, requested she be remanded in custody at the Mason Clinic. Dey will be sentenced on March 13.