"The panel was convened recently and will sit three days a week for six months," the Post said on Tuesday, citing two unnamed people familiar with the development.
"It is likely to hear several matters - not just the Trump case - during the duration of its term, which is longer than a traditional New York state grand-jury assignment, these people said."
Vance’s office has said in court filings it was investigating "possibly extensive and protracted criminal conduct" at the Trump Organisation, including tax and insurance fraud and falsification of business records.
A spokesman for Vance, Danny Frost, declined to comment on the Post report.
The Post said the move indicates Vance's investigation has reached an advanced stage and that he believes he has "found evidence of a crime - if not by Trump then by someone potentially close to him or by his company."
The New York attorney general's office said a week ago that it had opened a criminal investigation into Trump's company, increasing the legal risk for Trump and his family.
Attorney General Letitia James has been investigating whether the Trump Organisation falsely reported property values to secure loans and obtain economic and tax benefits.
Trump, who left office in January this year, has denied any wrongdoing.
Last week he attacked James, saying "we will overcome" any attempt at prosecution.
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Comments
Why don't they investigate hunter biden and his father with as much zeal?, they certainly aren't as pure as the driven snow as we are being lead to believe, besides why don't you report on the real news.... the election audits currently happening in the US at the moment and the anomaly's being picked up.
For over 5 years, they have investigated Trump for every possible crime imaginable....Yet, still he walks the streets a free man.
I thought 'Trump derangement syndrome' might have slowly died off after the 2020 election. Obviously many in America are still infected.