The proceedings between U2 and their former stylist Lola Cashman have concluded at Dublin Circuit Court, but a judgement will not be given until next Tuesday.
The former stylist for the band has claimed that U2 only proceeded with legal action for the return of the items of memorabilia after she threatened to sue them for defamation.
U2 are seeking to recover a number of souvenir items that their former stylist tried to auction in 2002, including a stetson and a pair of trousers worn by Bono.
Ms Cashman, who worked as a stylist for the band in the 1980s, claims that the items were given to her as gifts - a claim which was denied by U2 frontman Bono in court yesterday.
The former stylist told the court that she was frightened and intimidated by the initial letters that she received from the band's solicitors, after she decided to auction the souvenirs.
Ms Cashman claims that she didn't tell anyone about being given the items as gifts, or write about it in her book about U2, because she was not in awe of the band and did not think it was important.
When asked, under cross-examination, about a confidentiality clause that she signed with the band after her employment, Ms Cashman said that it related to five years after the termination of her employment, claiming that it was not a vow of silence for life.
In his evidence yesterday, Bono said: "You may have wealth and power, but when someone is trying to push us around and blackmail us and threaten us with books, at a certain point you have to say 'Stop right there'."
Judge Matt Deery will deliver his verdict in the case next Tuesday.