A U.S. federal probe into Australia’s submarine program is scrutinizing former defense official Lehrmann over financial misconduct and cost overruns.

A federal anti-corruption investigation into Australia's submarine procurement program has intensified scrutiny on former defense official Lehrmann, who faces growing scrutiny over financial irregularities and cost overruns linked to the project. Authorities are examining allegations of mismanagement and improper spending during the development phase, raising concerns about accountability in defense contracts. The probe continues to expand, with additional documents and testimonies under review.