The Brief A federal judge raised concerns over a "false affidavit" submitted to the court by Homeland Security Investigations agent Richard Berger. A federal judge raised concerns about sworn statements made by a federal immigration agent who is connected to dozens of criminal cases during Operation Metro Surge. Assault of federal agent case dismissedThe backstory:Prosecutors dropped criminal assault charges against Christina Rank earlier this week. In a sworn affidavit signed by HSI agent Richard Berger, the government accused Rank of assaulting the federal officer. What they're saying:Sweasy said it is "extraordinary to have a federal judge from the bench raising those issues about the credibility of an officer."