One Child International has written to Ireland's Minister for Justice Dermot Ahern, asking him to investigate Gibney, who was the country's head swim coach from 1984 and 1991, today's Irish Times reported.

Gibney was charged with 27 counts of sexual abuse but  judicial review in 1994 prevented the case from proceeding due to the length of time elapsed since the alleged incidents took place.

He has since left the country to live in the United States.

A copy of the letter from One Child International was also forwarded to the US Ambassador in Dublin, Dan Rooney, and to the US Department of Immigration.

"Minister, I am asking that you personally reopen this case . . ." wrote One Child International chief executive Evin Daly, according to the Irish Times.

"For the past two years we have being following the evidence trail of George Gibney, the Irish swimming coach, who has been documented as being a serial child sexual predator . . . An extensive report has been submitted to law enforcement locally in Orange County, Florida, where Gibney lives . . . with a view to initiate proceedings to deport Gibney . . . It is a travesty this has gone on so long unchallenged."

In the US, the group lodged a formal complaint about Gibney with immigration authorities last month.

One Child International has also informed local police where Gibney is living in Florida, who in turn have informed local residents about allegations against him.

An Irish Government commissioned report, released in 1998, found that Gibney had abused children for three decades.

Gibney, who coached the disgraced triple Olympic gold medalist Michelle Smith (pictured) and some of the biggest names in Irish swimming, was sacked as national swimming coach in 1992.

There was a huge public outcry after his replacement, Derry O’Rourke, was jailed for similar offences, and the scandal led to a complete overall of Irish sports coaching.

An independent public inquiry led to the development of a new code of ethics for all Irish sports.

In 2008 Swim Ireland settled a compensation claim of €2.5 million (£2.2 million/ $3.3 million) with 13 girls who had been abused by O'Rourke.

Gibney, meanwhile, fled to Scotland, where he continued to coach children.

He later fled to the US, where he coached in Salt Lake City in Utah.

He disappeared for several years but turned up in Orange City, Florida, under the name Jon Gibney.

Daly, President of One Child International, which has branches in Canada, Europe, South Africa, Australia and New Zealand, also contacted the office of the Director of Public Prosecution in Ireland regarding any possible outstanding charges against Gibney here and to discuss how to arrange extradition back to Ireland.

Daly, who was born in Sligo, was in Ireland after Christmas for the jailing of another former national swimming coach Ger Doyle.

Doyle, another former Olympic coach, was sentenced to six-and-a-half years in prison in January for sexually assaulting five boys at the swimming pool he managed.

The charity, established to prevent child abuse, expects that the immigration authority will forward a report to a field agent in Florida.

"I have written to Gibney’s local police department, Sherriff Ben F Johnson, Volusia County Sherriff’s Office, and I have met with them, updating them on his location and possible danger to the community," said Daly.

"I have given him Gibney’s background and have spoken to the detective in charge of crimes against children."