Even if the prosecutor can't prove that your client committed the crime supposedly being investigated, he will be charged with obstruction of justice or some similar offense for providing false information to agents or false swearing.
Special Counsel Robert Mueller began using a grand jury in federal court in the District of Columbia several weeks ago as part of his probe into possible coordination between the Kremlin and the Trump campaign, according to two people familiar with the investigation.
After President Trump lashed out at Congress on Twitter, Kremlin's spokesperson Dmitry Peskov told reporters that he agrees with the opinion that US-Russia relations at a dangerous low. "That is demeaning to all of us".
"I was shocked by that", conservative Sen.
"Grand jury matters are typically secret", attorney Ty Cobb said.
Experts said Washington would be the appropriate place to convene a grand jury to examine actions taken by Donald Trump since he became president and took up residence at the White House in the District, including whether he obstructed justice by firing FBI Director James Comey.
Moscow - which denies it interfered in the US presidential election - had already retaliated last week when Congress passed the bill, by expelling 755 persons from the US embassy and consulates in Russia. Some have asserted the meeting indicates possible collusion between Russia and the Trump presidential campaign.
"Our relationship with Russia is at an all-time & very dangerous low".
By employing a grand jury, Mueller will be able to subpoena documents, seek indictments and take witness testimony under oath.
Sources did not reveal who has been summoned but the jury is likely to want to question Mr Trump Jr.
And given the hyperpartisan rancor that pervades Washington as well as the Clintonistas' naked determination to undo the results of the election, your client's prospects become bleak indeed.
John Dowd, Trump's lead outside attorney, said he had not been made aware of the Washington panel's involvement prior to the published report. It's unclear if it's using the same grand jury from an investigation into former national security adviser Michael Flynn or an entirely different one.
News of the grand jury came as senators introduced two bipartisan bills aimed at protecting Mueller from being fired by Trump, with both parties signaling resistance to any White House effort to derail the investigation into Russian meddling in last year's election.
The proposal, by Democrat Chris Coons and Republican Thom Tillis, would prohibit a president from firing the investigator except for misconduct, conflict of interest, severe illness or another good cause.
"Our bill allows judicial review of any decision to terminate a special counsel to make sure it's done for the reasons cited in the regulation rather than political motivation".
Though there is "considerable deference to the prosecutors and their recommendations" when it comes to a grand jury, "the mere fact of presenting evidence to the grand jury does not obligate prosecutors in any way to ask them to return an indictment", Frenkel said. Some analysts had said that if the president wanted to fire Mueller, the proposed legislation might have prompted him to do it before the Senate had a chance to vote on the new law.