Steroids Expert Explains How Bonds Could Pass Tests

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    NEWSLETTERS

    AP
    Former San Francisco Giants' Barry Bonds gestures during the fifth inning of Game 1 of baseball's World Series against the Texas Rangers Wednesday, Oct. 27, 2010, in San Francisco. (AP Photo/Marcio Jose Sanchez)

    A steroids expert told jurors in the perjury trial of home-run  record holder Barry Bonds in federal court in San Francisco Thursday that two  designer drugs allegedly used by Bonds were carefully designed to avoid  detection.
       
    Larry Bowers, a chemist who is the chief scientist at the  nonprofit U.S. Anti-Doping Agency in Colorado, was the third prosecution  witness in Bonds' trial, which began this week.
       
    He said an anabolic steroid known as "the clear," or THG, was  "pretty cleverly designed" and was not detectable by most drug testing  protocols in 2003. The scientific name for THG is tetrahydrogestrinone.

    Another steroid known as "the cream" was designed to "basically  fool the laboratory," Bower said.

    Bowers said doping authorities became aware of THG after being  anonymously sent a syringe of it in 2003, and eventually developed a test for  it. He said THG was not specifically listed as a federally controlled  substance in 2003 but was added to the list by 2005.

    The scientist said that in his 35 years in the field of drug  monitoring, "We were always concerned about designer steroids, a compound  specifically made to avoid detection.
       
    Bonds, 46, is accused of lying to a federal grand jury in December  2003 when he said he never knowingly received steroids or other  performance-enhancing drugs from his trainer, Greg Anderson.

    The former San Francisco Giants slugger is not on trial for taking  steroids, but rather for making false statements before the grand jury. The  panel was investigating sports drugs sales by the Bay Area Laboratory  Co-Operative, or BALCO.

    Defense attorneys have said that Bonds admitted to the grand jury that he used "the clear" and "the cream," but said he thought they  were flaxseed oil and an arthritis cream.
       
    Prosecutors are seeking to use a variety of evidence in the  four-week trial, including testimony from other athletes who received the  drugs from Anderson, to try to prove that Bonds did know what the substances  were.
       
    Bonds set Major League Baseball's single-season and career  home-run records while playing for the Giants.
       
    He is the last of 11 defendants who were charged with either lying  or distributing performance-enhancing drugs in connection with the BALCO  probe. The others, including chemist Patrick Arnold, who designed "the  clear," all pleaded guilty or were convicted of various charges.