Grand jury to look at Bulger’s Calif. stay

“I haven’t been told anything about it,’’ Bond said. “I don’t know what they’re going to ask me. I’m not concerned. It’s a free trip to Boston.’’

Another person who knew the couple from their days at the apartment is also expected to testify, according to two people with direct knowledge of the subpoenas. One of them said the subpoena did not detail the scope of the investigation and only said the grand jury is investigating “possible violations of federal criminal laws.’’

Bulger, who is accused of 19 murders and had been one of the FBI’s 10 Most Wanted, was captured June 22, along with Greig. She is charged with harboring a fugitive. FBI agents lured Bulger from the couple’s apartment at 1012 Third St. by saying his storage unit in the building’s garage had been burglarized.

During a search of Bulger’s apartment, the FBI found $822,000 in cash and an arsenal of knives and 30 high-powered, loaded guns, authorities said. The weapons were hidden behind books and stashed in holes cut into the walls and covered with mirrors or pictures.

Officials said agents found at least 15 aliases for the couple and books titled, “Secrets of a Back Alley ID Man,’’ and “Fake ID Construction Techniques of the Underground.’’

Yesterday, a spokeswoman for the US attorney’s office would not comment on the grand jury investigation. “We don’t confirm or deny grand jury investigations,’’ said the spokeswoman, Christina DiIorio-Sterling.

During a court hearing last week, a prosecutor hinted that Greig might face additional charges as a result of the weapons and fake identification seized in the Santa Monica apartment.

While arguing that Greig should remain jailed without bail, Assistant US Attorney James Herbert said that in addition to facing at least 33 months in prison if convicted of harboring a fugitive, she “also has exposure for other potential offenses.’’