September 20, 1995
Web posted at: 2:45 p.m. EDT
LOS ANGELES (CNN) -- Judge Lance Ito ruled Wednesday that FBI agent Frederic Whitehurst may not testify in the O.J. Simpson case. In a two-page ruling, Ito found that Whitehurst has "no direct or specific knowledge" concerning the testing done by fellow agent Roger Martz in the case.
Ito also ruled against allowing the defense to call Martz back to the stand for further questioning. Ito wrote that further testimony "would only serve to aggravate and confuse the sequestered jury." The judge also found that tests done by Martz in other cases have "no direct bearing on EDTA testing in this case."
EDTA is a chemical used to preserve drawn blood samples. The defense has accused police of planting such preserved blood in order to incriminate Simpson.
Martz testified earlier in the case as a hostile defense witness. He said that his testing of blood samples from Simpson's socks and from a gate at the murder site did not show the presence of EDTA.
The defense called their own witness to the stand, Dr. Frederic Rieders, who testified that EDTA was present in the blood on the gate and sock. Rieders did not conduct his own testing on the blood. Instead, he re-interpreted the results obtained by Martz.
Whitehurst has been critical of Martz's handling of evidence in other cases, saying he had interpreted evidence in favor of prosecutors.
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