According to media reports, in November 2022, Biden’s personal lawyers were clearing out remaining items at his private office at his pre-presidency think tank when they located approximately 10 documents containing classification markings. The lawyers appear to have notified White House counsel, who then notified the National Archives and Records Administration (NARA). The documents were properly secured by the federal government the next morning. Additional reporting indicates that a second separate batch of records with classification markings were found in supplemental searches by Biden aides.
To be unequivocally clear, those documents never should have been in unauthorized locations. Period.