Afterwards, Hilary Williams, Hayley's aunt, dismissed the fine as "insignificant’’.

"I feel that it should have been a lot higher. It should have been so much higher that it would have put this company out of business for good.’’ She added: "No amount of money will bring Hayley back but the sentence should have been more severe for what they have done to my family.

"Hayley was the heart of the family and we will never get over it. We live with this every day.

"There were other members of our family on the ride on the day. More could have been killed.’’ Outside court, Hayley's father, Alan Williams, described the fine as "derisory’’.

He added: "But if it had been one billion it would not have been enough.

"Our family and friends have had a life sentence to face the death of Hayley.

"A lot of people say that maybe after today we will find closure. But if somebody can define what closure is, because we are certainly not feeling it.’’ His wife, Beverley, added: "Lessons must be learned. This is absolutely terrible. It has destroyed all of us.’’ Steve Coppell, head of operations for the HSE in Wales, urged operators of funfairs everywhere to check they were doing enough to guarantee safety.

He said he believed the fine was large enough to attract everyone's attention in the industry.

He acknowledged that Oakwood had made a series of safety changes in the aftermath of the accident.

A new over the shoulder restraint system had been brought in and staff were now monitored via the CCTV system to ensure they were carrying out safety checks.

"This was a systemic failure over a long period of time,’’ he said.