A historian and Mother and Baby home campaigner feels the Commission of Investigation's report was a 'pointless exercise'.
The comments from Catherine Corless come after it emerged the testimony of hundreds of people was not included in the report.
Chair of the Commission of Investigation, Professor Mary Daly claimed what some survivors said did not meet a legal standard of evidence.
She made the comments during a seminar in the UK this week.
Catherine Corless says "They went up there and they opened their hearts and their souls, and they talked about their traumatic experiences and how it had affected them all their lives.
"And now realise what was it for; and then out come the announcement that everything was going to be locked away for 30 years - a lovely way of just covering up everything again."
Members of the Commission of Investigation have been invited to appear before Oireachtas Committee's on two previous occasions to take questions on the report.
However, they have been turned down.
The Government is now pleading with the Commission to come before the Oireachtas to answer questions from TD's and Senators.
A spokesman for Micheál Martin said it would be helpful and "the correct thing to do".