Arlington County prosecutors disclosed in court yesterday that preliminary DNA test results show a strong match between the genetic makeup of Michael Charles Satcher, who is a suspect in two assaults on women joggers, and the man who killed Anne Elizabeth Borghesani seven months ago.

On the weight of those results, Arlington County Circuit Court Judge Benjamin N.A. Kendrick complied with a request by the commonwealth to revoke Satcher's bond, which had been set at $40,000. Satcher, 22, has not been charged in Borghesani's slaying.

Satcher is being held in the Arlington County jail on charges he attacked two women joggers in August on a South Arlington bike path. The cases terrorized many women in Arlington, a community that has a low crime rate and an extensive system of jogging and bike trails.

The DNA results are the latest in an apparently conflicting series of tests to determine whether Satcher and the man who killed Borghesani are the same person.

Arlington prosecutors announced in August that they believed blood tests linked Satcher to the March bike path slaying of Borghesani, 23, a Washington paralegal worker. Hair samples appeared to contradict that claim several days later.

But forensic experts believe that DNA testing provides almost irrefutable evidence of whether an individual was at a crime scene.

"The hair sample is less definitive as far as identification goes, and the same is true of serological {blood} examinations," said Richard Killian, regional director of the Fairfax branch of the Northern Virginia Forensic Laboratory.

"The DNA from Satcher is consistent with that from Borghesani," Commonwealth's Attorney Helen F. Fahey said yesterday. "Because of the serious nature of the crime, we argued that {Satcher} was a danger to society."

Satcher's court-appointed attorney, John C. Youngs, said he probably would not appeal the bond revocation. But Youngs questioned the ruling, saying that prosecutors have not formally charged Satcher with Borghesani's killing.

"If they have enough evidence to come in here and proffer the court, they ought to go out and get a warrant and do this the right way," Youngs said.

Borghesani was stabbed to death on the evening of March 31 as she walked along the Custis bike trail near Rosslyn. Law enforcement sources said she had been sexually assaulted by her attacker. Her body was left in an outdoor stairwell of a building adjacent to the trail.

On Aug. 18, police arrested Satcher, a furniture mover from Southeast Washington, and charged him with abduction in the assaults on two joggers on the Washington & Old Dominion bike trail in South Arlington.

In a court hearing last month, both victims testified that a man wielding a knife grabbed them from behind and pulled them off the path into nearby brush. The attacks occurred separately, within two hours of each other.

A police officer patrolling the bike path on motorcycle arrested Satcher about a mile from where the attacks occurred.

Police said that at the time Satcher was arrested, he held a hunting knife, concealed by a T-shirt wrapped around his hand, and was running a few feet behind a third woman jogger. Satcher will stand trial on Nov. 19 on abduction charges stemming from those attacks.

DNA, or deoxyribonucleic acid, is the basic genetic material found in cells of every living organism. Scientists believe that every individual, with the exception of identical twins, has a unique DNA fingerprint, which can be determined by analyzing microscopic patterns in the bodily fluids or tissue.

"DNA testing can, with a very high level of probability, lead the examiner toward a more specific identification," Killian said. DNA testing has won wide approval in Virginia, which was the first state to use it. Frequently the evidence is considered so strong that it convicts or exonerates a suspect by itself.

Fahey said it was not clear when final results of the genetic testing, including numerical data and a written report, would be coming from state forensic labs in Norfolk. She said, however, that it was "extremely unlikely" that the final results would contradict the initial findings.

Borghesani's father, Roger, of Lexington, Mass., said final discussions will be held next week concerning a trust fund set up in his daughter's honor at Tufts University, her alma mater.

"I think the person who kills doesn't realize that they kill more than one person. Part of the parents and siblings dies with that person as well," Roger Borghesani said. "It's something you never get over."