UPDATED: April 9, 2014, at 1:54 a.m.

Four months after his arrest for allegedly engineering a bomb hoax on Harvard’s campus, Quincy House sophomore Eldo Kim has still yet to be indicted by a grand jury.

Allison D. Burroughs, Kim’s private counsel, declined to comment on the proceedings of the case, which began with a federal complaint on Dec. 17, 2013 alleging that Kim sent several emails saying he had placed bombs in two campus buildings. The U.S. Attorney’s Office did not respond to multiple requests for comment, and the case’s electronic court record has not changed since Dec. 23.

The Speedy Trial Act of 1974 mandates that a suspect be indicted within 30 days of arrest.

Yet, according to legal experts, a variety of pretrial delays can extend that timeframe, sometimes to a great extent.

Alex Whiting, a professor of the practice of criminal prosecution at Harvard Law School, said that the defense and the U.S. Attorney’s office may be working to settle the case without a trial.

“If a trial has not reached a grand jury, that suggests that there are discussions between the defense and the prosecution about a resolution of the case, which I would expect anyhow,” Whiting said. “Those discussions may result in resolution, or they may not, but it’s no surprise that there would be ongoing discussions.”

However, Jeffrey A. Denner, founder of the Massachusetts firm J A Denner Criminal Defense Group, cautioned that the arrest was recent enough that no conclusion can be drawn from the delay.

“I do not know whether negotiations are going on,” Denner said. “Normally the defense lawyer and the U.S. attorney talk. Talking doesn’t mean they’re negotiating.”

Denner also pointed out that the delay may be caused by the U.S. Attorney’s need to gather more evidence, rather than by negotiations.

According to an affidavit filed by an FBI agent in December, Kim confessed to making the Dec. 16 bomb threat—which was sent to the Harvard University Police Department, University administrators, and the president of The Crimson—to avoid a final examination.

“Normally, it’s not the defendant that’s slowing the indictment process down, it’s the U.S. Attorney’s office,” Denner said.

Like Whiting, Kari E. Hong, an assistant professor at Boston College Law School and a criminal appeals attorney, said that she suspects the defendant’s counsel is in negotiation with the prosecution.

“A good criminal defense trial attorney will be on the phone with the prosecutor on day one, trying to negotiate,” she said. “Over 95 percent of cases are resolved by plea, so the earlier that happens, the better. I tell my students, the very best defense attorney is someone who is on very good terms with the prosecution.”

If convicted under the federal bomb hoax statute, Kim could be sentenced to up to five years of imprisonment, three years of probationary release, and a $250,000 fine.