By Jason Pan / Staff reporterFormer president Ma Ying-jeou (馬英九) yesterday filed a lawsuit against Taipei prosecutors for allegedly leaking details from a case under investigation, after media reports that prosecutors have a recording allegedly implicating Ma in financial irregularities arising from the sale of party assets more than a decade ago. With his security escorts in tow, Ma filed his complaint naming Chief Prosecutor Shing Tai-chao (邢泰釗) and head prosecutor Wang Hsin-chien (王鑫健) as those allegedly responsible for the leaks at the Taipei District Prosecutors’ Office. He then went to the Taiwan High Prosecutors’ Office to apply for a transfer of the case under investigation to another jurisdiction. Ma said the Taipei prosecutors had not adhered to the principle of confidentiality in a case under investigation. The Taipei District Prosecutors’ Office yesterday said in a statement that the allegations reported in the media had not been verified and had nothing to do with any of the prosecutors, adding that people should not engage in speculation.