BRISTOW, Okla. (AP) _ Tests of stains found on a robe, a small chair and carpet under the desk in a former Creek County judge's chamber provided a genetic match to Donald Thompson, a state forensic expert testified Friday.
J.D. Lindstrom said he found a positive DNA match for seminal fluid on the items that ruled out anyone else. Material found on a ``penis pump'' that was entered into evidence in the trial could not exclude Thompson, but the odds of a random match with another person were one in 6,800, Lindstrom testified.
Prosecutors have charged Thompson, 59, with four felony counts of indecent exposure and allegedly using a ``penis pump'' while presiding over trials in 2002 and 2003. Lindstrom, a forensic expert from the Oklahoma State Bureau of Investigation, provided a detailed clinical explanation of testing procedures during nearly three hours of testimony.
Thompson's trial opened on Tuesday and will continue Monday. Prosecutors have two witnesses remaining to present.
Earlier in the day, Dr. S. Edward Dakil spent more than four hours detailing Thompson's health between 1988 and early 2006.
Dakil, a urologist, reviewed 500 pages of Thompson's medical records for the prosecution. He detailed problems Thompson apparently had with urinating and low-quality erections.
Over the years, the former judge tried a variety of methods to combat erectile dysfunction, including taking extract from tree bark, injections into the side of the penis and eventually pills, Dakil testified.
Dakil also identified the ``penis pump'' in evidence as a vacuum device designed to mechanically aid in reaching and maintaining an erection.
``Erections are plumbing,'' Lindstrom testified. ``This isn't difficult. Blood flow in and blood flow out.''
Defense attorney Clark Brewster noted during cross examination that Thompson's detailed medical records never mentioned that he used any type of vacuum device.
Thompson served for more than 20 years on the bench in eastern Oklahoma before his retirement in 2004. His trial was moved to Bristow, 20 miles west of the Sapulpa courtroom where he served.