Woman Linked to Jackson Doc Subpoenaed

In this June 5, 2012, photo, a customer reads a book by the Espresso Book Machine, known as Opus, at Politics and Prose bookstore in Washington. Self-publishing has been made easier since the machine by On Demand Books debuted in 2006. The machine also can makes copies of out-of-print editions. The first machine was installed briefly at the World Bank?s bookstore. Through a partnership with Xerox, the company now has machines in about 70 bookstores and libraries across the world including London; Tokyo; Amsterdam; Abu Dhabi, United Arab Emirates; Melbourne, Australia; and Alexandria, Egypt. (AP Photo/Jacquelyn Martin) / Jacquelyn Martin

A woman connected to Michael Jackson's personal physician has been ordered to testify before a grand jury in Los Angeles, her attorney confirmed Tuesday.

Nicole Alvarez received a subpoena to appear before the grand jury on Wednesday morning, said Joseph Low IV, adding that prosecutors declined to give him any more details

He also declined to characterize the relationship between Alvarez and Dr. Conrad Murray.

Newspaper reports have called her Murray's girlfriend and said the pair have an infant son together. Alvarez's apartment was searched last month.

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Murray is the target of an investigation into Jackson's June 25 death, which has been classified a homicide. He told police he gave the pop superstar the powerful anesthetic propofol and other drugs in the hours before Jackson's death.

Murray's attorney has said the doctor didn't give Jackson anything that "should have" killed him.

The Los Angeles County District Attorney's Office, which would prosecute the case against Murray if one is filed, declined to comment.

A grand jury subpoena is an effective way to force reluctant witnesses to testify, said Stan Goldman, a professor of criminal procedure at Loyola Law School Los Angeles.

"They can be held in contempt just like refusing in court," Goldman said.

He said it's hard to tell what Alvarez's testimony to grand jurors might mean for Murray.

It's possible authorities "don't have such a strong case that they want to do without this woman," Goldman said. "They'd rather have her.

"On the other hand, it's not good, because they're still interested it seems."