The National Consumer Agency has said that a question had arisen as to whether the promoters of the Barbra Streisand concert in Castletown House, Kildare, last Saturday had met their duty of care to and contractual agreements with fans who bought tickets for the event.
Also yesterday, Fine Gael TD and lawyer Alan Shatter said the vast majority of people who attended "this chaotic concert" had valid claims to recoup the price of their tickets.
Many concert-goers, who had paid up to €550 for tickets, had to endure lengthy traffic delays arriving and leaving the event and some found that their seats had been taken by others.
In a statement yesterday Ann Fitzgerald, acting chief executive of the National Consumer Agency, said it believed that event promoters MCD had a duty of care towards consumers who purchased tickets and a contractual agreement to provide consumers with the seat they bought.
"A question has now arisen as to whether they met these requirements on Saturday night."
Ms Fitzgerald said the consumer agency was seeking a meeting with MCD and asked consumers who had been adversely affected to contact the agency.
She said the agency would carry out an analysis of the complaints received and follow them up "as appropriate".
Mr Shatter said serious questions of public interest had to be answered.
" MCD and Concert Promoters International, who were responsible for the concert, would have had to obtain proper licensing for the holding of the concert and were required in law to comply with basic health and safety standards."
"Insofar as there was a failure to do so, those responsible should be prosecuted," he said.
Kildare County Council said it too would be meeting MCD.
A spokesman said yesterday that concert-goers seeking to raise issues should contact MCD.