A woman with 2500 personalities who suffered unspeakable crimes at the hands of her father has testified in Sydney about his "monstrous" acts which have damaged all aspects of her life.
Richard Haynes, 74, pleaded guilty mid-trial in March to dozens of counts of rape, buggery and indecent assault committed against his daughter, Jennifer, in the 1970s and 1980s.
Ms Haynes, who has consented to be identified, was aged between four and 11 at the time.
She has developed dissociative identity disorder - previously known as multiple personality disorder - as a result. She has thousands of different voices and opinions.
In Downing Centre District Court on Friday, Ms Haynes took a deep breath and began reading from a lengthy victim impact statement, staring at her father as he looked down in the dock.
Ms Haynes arrives at Downing Centre District Court on Friday. Source: AAP
"He heard me beg him to stop, he heard me cry, he saw the pain, the terror he was inflicting upon me," she said.
"He saw the blood and the physical damage he caused and the next day he chose to do it all over again. My dad's abuse was calculated and it was planned."
She said Haynes' abuse forced her to develop the multiple personalities as "the only way" to cope, including four-year-old Symphony, who she embodied for some time on Friday while giving evidence.
"All the other alters ... have done their job so well and kept Jenny alive," she said.
"When Dad nearly killed us physically, Symphony removed the alter who was almost dead and replaced them with a fresh alter to keep going."
Ms Haynes said there were insufficient words "to do justice to the enormity" of the impact of his offending on her life.
Vile, extreme, sadistic, inescapable, unavoidable and overwhelming were some of the words she did utter.
Ms Haynes has a colostomy bag, has permanent issues with dentistry, vision and mental health, and fears bathrooms and toilets.
The sentencing hearing before Judge Sarah Huggett continues.
beyondblue 1300 22 4636
