The trial of three former Anglo Irish Bank officials has heard they were involved in a task team set up to assist a Revenue review into bogus non-resident accounts.

Retired company secretary Bernard Daly and former chief operations officer Tiarnan O'Mahoney deny withholding information from Revenue of an account in the name of Sean FitzPatrick's brother in law.

The jury is hearing from former Anglo Irish Bank fraud prevention officer Patrick Peake.

In 2010, he carried out an investigation into the handling of an earlier Revenue probe into bogus non-resident accounts.

He said in 2003 an internal task team was set up at the bank to deal with the Revenue review, and he himself was a member of that team.

It is alleged that details of a non-resident account in the name of bank Chairman Sean FitzPatrick's brother-in-law, John Peter O'Toole, was not submitted to Revenue.

Mr Peake said one of the accused - Aoife Maguire - was on the team which had been put together at the request of her co-accused Mr O'Mahony, and reported to the then head of compliance Mr Daly.

Changes made to Sean FitzPatrick's account after it was closed

Earlier the trial heard that several changes were made to the name and address details on the account of former Anglo Irish Bank chairman Sean FitzPatrick on the bank's internal record system.

Mr Peake told the court that he examined records relating to an account set up in March 1998 called "The Sean FitzPatrick Trust" and the "Crohan O'Shea Trust" with an address "care of Anglo Irish Bank."

A year later someone with the username AM1 made further changes to the account. Mr Peake said this was the login of one of the accused, Aoife Maguire. This user changed the name of the account to "Sean FitzPatrick/Crohan O'Shea Trust".

A further change was made in 2003 when the address was changed to "care of Monica Carney" The witness said Ms Carney was Mr FitzPatrick's personal assistant at the time.

In May 2004 someone accessed the bank's computer system using the login MC9. Mr Peake confirmed this was the same login used to make changes to other accounts connected to Mr FitzPatrick. He said it is a general login which could have been used by many people in the IT department.

On this occasion the name of Sean FitzPatrick was removed entirely from the account records and the name was changed to "Crohan O'Shea Trust" with an address in Killiney. Mr Peake confirmed this is Mr O'Shea's home address.

The next month the account was closed down. However a few days later on May 28th, 2004 another change was made and Mr FitzPatrick's name was put back in. Three days later it was again taken off.

The trial continues before Judge Patrick McCartan and a jury of six men and six women.