The decision was announced on Monday by the US Senate Budget Committee, which has been probing Credit Suisse’s handling of the internal investigation. The bank confirmed the decision on Tuesday, taking the unusual step of amending a press release it issued in April to delete criticism of Barofsky’s work.

“A clear-eyed and historically complete evaluation of Credit Suisse’s servicing of Nazi-linked accounts demands painful facts to be met head on, not swept aside,” senator Chuck Grassley of Iowa and Senator Sheldon Whitehouse of Rhode Island said in a statement on Monday. “At our insistence, Credit Suisse has agreed to dig deeper into its own history, and Mr Barofsky will again oversee this review.”

Barofsky, a former inspector general of the Troubled Asset Relief Programme and frequent Wall Street critic, was removed as ombudsman by Credit Suisse in November 2022. While he was initially given the task of producing a public report on his findings, the Budget Committee obtained the document only after issuing a subpoena, it said earlier this year. The report alleged the bank had narrowed the scope of the inquiry and failed to follow through on some leads.

Read More: Credit Suisse Accused of Hindering Probe Into Nazi Accounts

When the committee released that report in April, Credit Suisse issued a statement saying its probe didn’t support key claims about Nazi-linked accounts made by the Simon Wiesenthal Center in 2020. It also said the report prepared by Barofsky contained “numerous factual errors, misleading and gratuitous statements and unsupported allegations that are based on an incomplete understanding of the facts.”

On Tuesday, the bank amended its April 18 press release to remove the criticism of Barofsky, adding a note that he has been re-engaged. Separately, it said he had been reinstated “to complete the independent investigation,” noting that it believes the reinstatement “will also help resolve any issue” between Credit Suisse and the Wiesenthal Centre. 

After the Senate panel in July criticised Credit Suisse for failing to follow through on pledges to cooperate, the bank provided an unredacted version of the Barofsky report to the legislators. That showed the bank had failed to review all available records, according to the senators.

Read More: Credit Suisse Nazi Probe Left Out Some Records, Report Says

Credit Suisse was bought by rival UBS earlier this year. A spokeswoman for UBS had no comment.

The spat over the internal Credit Suisse probe comes about a quarter century after the two big Swiss banks reached a $1.25 billion settlement with victims of the Holocaust. That accord resolved claims that the banks failed to return assets to survivors of Adolf Hitler’s genocide and heirs of victims. It also covered claims by people whose assets were looted by the Nazis and deposited in Swiss banks.