The 16-year-old daughter of a cyclist who died in a notorious hit-and-run collision in South Australia says the case has left her with little faith in the justice system.

Chloe Humphrey was eight when her father Ian died after his bicycle was struck from behind by a four-wheel-drive on a country road north of Adelaide.

The vehicle was being driven by prominent Adelaide lawyer Eugene McGee, who failed to stop after the collision. More than six hours later, he turned himself in to police.

A witness described seeing Mr McGee driving at a high speed moments before the crash.

Mr McGee had consumed at least four or five glasses of wine over lunch that day, but he was never given a blood alcohol test by police.

He was found guilty of driving without due care and fined $3,000, with his licence suspended for a year.

Speaking for the first time about the crash which killed her father and the long-running legal battle which followed, Ms Humphrey told Australian Story she feels let down by the legal system.

"I don't think a lot of justice has been done," she said.

"How can this man take away so much from another family and then he only gets a small penalty?"

She was not the only one angered by the outcome.

Independent Senator Nick Xenophon said the entire legal board should be sacked as the penalty was a disgrace.

Hundreds of outraged cyclists also rallied on the steps of Parliament House, where the Attorney-General apologised for the outcome of the state's justice system.

In 2005, the South Australian Government held a Royal Commission to look at the failures of the police investigation of the case and the prosecution of Mr McGee.

Following the Royal Commission, further charges were laid against Mr McGee but he was acquitted, and the state's Legal Conduct Board has declined to take action against him.

The Royal Commission was in part instigated by Mr Humphrey's widow, Di Gilcrist, whose campaigns also led to changes in state legislation.

Ms Humphrey says her mother has been an inspiration.

"She's amazing for what she has done and what she's put up with," she said.

"My mum has been the one pushing this the whole time. She's been the driving force behind this for eight years."

'An unmitigated disaster'

Mr McGee - speaking for the first time since the crash in 2003 - says the case has been a tragedy for all concerned.

"It's been an unmitigated disaster for everybody, certainly for my family, clearly for Mr Humphrey's family and for all people associated with Mr Humphrey," he told Australian Story.

"Can I take this opportunity to extend my sympathies to the family for their loss. I am sorry for what occurred and to apologise to them for my reaction to the accident."

Ms Humphrey says she wishes Mr McGee could understand how much he has hurt her and her family.

"I don't know if he does feel much guilt. I'm sure that he would but I don't know that," she said.

"I miss my father every day. I loved him and I wish I got to know him better.

"I do wonder all the time how it might have been. What he would have said on the first day of high school, on my birthdays, and just every day."

For the full story, go to the Australian Story website here: Road To Nowhere screened Part one this week and Part two will air on February 13 at 8.00pm on ABC1.