Washington ( CNN ) -- A half-dozen contract security officers at the federal courthouse where baseball 's Roger Clemens was put on trial last month are in trouble with their employer for accepting gifts from Clemens ' defense team after the judge declared a mistrial , the U.S . Marshals Service said Thursday . Clemens , under a six-count indictment accusing him of lying to Congress during an investigation of illicit steroid use , may still face a re-trial on those charges . He has pleaded not guilty . U.S. District judge Reggie Walton had declared a mistrial soon after the jury had been seated , when prosecutors introduced testimony he previously ruled inadmissible . After the mistrial , according to the Marshals Service , a number of courthouse security officers employed by a contractor received baseballs autographed by Clemens , reportedly in appreciation of their escorting him through a large mob of media covering the trial . The security company confirmed the gifts , the Marshals Service said . `` These alleged violations did not jeopardize judicial security , '' the Marshals Service said , leaving any discipline up to the contractor that is conducting it own investigation . While no laws were broken , `` It is a violation of the contract for Court Security Officers to accept gifts in connection with official duties , '' according to a policy cited by the Marshals Service . At risk could be a $ 5 million security contract for the company in place since 2008 . In the statement sent to CNN Thursday , the Marshals Service said `` six employees have been identified as being involved in the incident . '' The service said the security company has proposed disciplinary actions , `` and those recommendations are being reviewed by the Marshals Service . '' The statement did not elaborate on the proposed disciplinary actions . Meantime , the guards remain scheduled for duty , the statement said .
Courthouse guards face possible punishment from their employer for accepting gifts . Roger Clemens ' defense team gives autographed cards to reporters . Adams ' federal trial leads to appeals ; he may face a re - trial .