NAHA, Okinawa — There’s virtually no possibility someone else could have the same DNA as the former Exchange New Car Sales employee on trial here on charges of raping two Okinawa women, a forensics expert testified Wednesday.

The expert, Shigemi Oshida, a forensics professor at Nihon University in Tokyo, was hired by the court to examine DNA evidence in the rape trial of Dag Allen Thompson. He said he examined the procedures the local forensics lab used, then did some DNA profiling of his own, using DNA extracted from the defendant’s saliva and from semen found at the two rape crime scenes.

His conclusions were that the local DNA profiling was up to standard and the results were too generous.

In June, the Okinawa Prefectural Police crime lab chief testified there was just one chance in 3.482 billion someone else’s DNA would match Thompson’s.

A more up-to-date profiling procedure conducted by Oshida put the figure much higher.

“It’s a trillion — plus eight more zeroes,” Oshida testified.

Thompson showed no emotion as Oshida testified he didn’t believe the semen and saliva samples had been contaminated in any way and that the new profiling techniques he used confirmed the results of the local tests.

Thompson, 35, a former Marine married to an Okinawan woman, is charged with breaking into the Chatan home of a 21-year-old woman on Aug. 22, 2004, and raping her in bed. After his arrest that October, police linked his DNA to DNA extracted from a housebreaking and rape of a 27-year old Naha woman on June 18, 1998.

He has pleaded not guilty to all of the burglary and rape charges. During earlier hearings, he contended a statement he signed just after his arrest admitting to entering the Chatan woman’s unlocked home and fondling her while she slept was given under duress and was false.

He never has addressed the Naha case.

His lead attorney, Toshimitsu Takaesu, has moved to dismiss the Naha case, contending U.S. military officials weren’t properly notified that Thompson had been charged in that incident.

The prosecution contends Thompson was not an employee of Exchange New Car Sales until that July and was not covered by the bilateral status of forces agreement. Under SOFA, Japanese authorities have to notify the U.S. military of all criminal procedures taken against SOFA personnel.

During the Wednesday afternoon session of the hearing, Takaesu called Timothy O’Rourke, sales support manager for Exchange New Car Sales, who had paperwork that showed Thompson’s effective date of employment was June 1, 1998.

Thompson’s next court session is set for Tuesday. Thompson has been confined since his arrest.

The prosecution’s closing argument is set for Feb. 3, with the defense set to close its case on Feb. 9.

Chiyomi Sumida contributed to this report.

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