ZURICH (Reuters) – Prosecutors searched the offices of Swiss private bank Pictet in mid-March in connection with a criminal probe into dealings with Brasilian state-run oil firm Petrobras, the bank confirmed following media reports on Wednesday. “The (Office of the Attorney General) OAG confirms that in mid-March it carried out a search of a banking institution in Geneva. This search took place in the context of ongoing criminal proceedings, linked to the Petrobras investigation complex, which were opened in December 2021,” federal prosecutors said in an emailed statement. Swiss newspaper Le T…