An Alexandria woman testified in General District Court yesterday that Robert Jeffrey Lujan broke into her apartment, spoke with her for two hours, then led her on a walk up five flights of stairs and back to her apartment before forcing her to have sex with him.

Her testimony came during an hour-long preliminary hearing on charges against Lujan, the 28-year-old son of Interior Secretary Manuel Lujan Jr., who was arrested Wednesday night and charged with raping the woman in her northeast Alexandria apartment last Sunday morning.

General District Judge Robert T.S. Colby found sufficient evidence to refer the case to the Alexandria grand jury, which meets again Dec. 3. Colby also refused to revoke Thursday's order by General District Judge D.F. O'Flaherty that Lujan be held without bail.

Robert Stanley Powell, Lujan's attorney, said after the hearing that the woman's testimony was riddled with inconsistencies. "Part of her story is fact, and part of her story is fantasy," Powell said.

Powell and Manuel Lujan have said in interviews that Jeffrey Lujan concedes he spent several hours in the woman's apartment, but added the woman invited him to the apartment and that the sexual relations were consensual.

The 48-year-old woman, the only witness called to the stand yesterday, said she had several drinks last Saturday night at a party and later a bar before returning alone to her apartment shortly after 3 a.m.

She said she awoke about 4:30 a.m. to find Lujan sitting on her bed. On direct examination by Deputy Commonwealth's Attorney S. Randolph Sengel, the woman said Lujan was naked and carried a gun.

"We talked for a long time," the woman said. "I asked him why he was there. He said someone had spotted him and because my apartment was close to the elevator he decided to come in."

The woman said Lujan picked the deadbolt lock to her apartment but never explained who was pursuing him.

After speaking for almost two hours, Lujan donned a pair of pants, and ordered the woman, in a nightgown and robe, to walk with him up five flights of stairs to the floor where the Lujans have an apartment and where Lujan said he wanted to show the woman something, according to the woman.

The woman testified that he stopped when they reached the eighth floor and said, "This is really stupid. I shouldn't be doing this."

Lujan then took her by elevator back to her own apartment where, after "more talking," she was sexually assaulted, according to her testimony. After Lujan left the apartment, the woman hurried to the building's lobby and told an attendant at the front desk to call the police because she had been raped.

Manuel Lujan said after his son was arrested Wednesday night that Jeffrey Lujan has a severe drinking problem. "He's an alcoholic. He attends Alcoholics Anonymous and he fell off the wagon," Lujan said.

Jeffrey Lujan was first arrested for driving while intoxicated when he was 14 years old, Powell said. Lujan, the youngest of the four Lujan children and a part-time house painter, has been convicted of seven charges of driving while intoxicated and two charges of driving with a suspended license.

Powell said his drinking and the subsequent legal problems have made him "the black sheep" of the family. "He's the only one who's ever had problems with the law," Powell said.

Lujan also was convicted in 1983 of possessing cocaine with the intent to sell and using a phone to conduct a drug sale. He served 16 months on those charges and spent 18 additional months in a federal prison after a 1987 drunken driving conviction.

After serving time on the 1987 case, Lujan participated in two alcohol treatment programs: the Prison Fellowship USA and Alcoholics Anonymous.

Lujan's mother and his two sisters, both of whom live in the Northern Virginia area, attended yesterday's hearing but declined to comment on the case. Steve Goldstein, a spokesman for the Interior Department, said the secretary will not attend the hearings because he does not want to lend the appearance that he is trying to exert inappropriate influence on the case.

"Yesterday was a difficult day for Mrs. Lujan," Goldstein said. "But the family received numerous calls of support from a wide variety of people: friends and colleagues, including the president."

Yesterday morning, after a ceremonial signing of various bills, President Bush took Manuel Lujan aside, spoke with him for several minutes and gave him a hug, an administration source said.

Jeffrey Lujan graduated from Emerson Preparatory School in Washington, where he had a good record, according to Margot Walsh, an administrator at the school.

Lujan attended New Mexico State University and Northern Virginia Community College in Alexandria, though he did not obtain a degree.