Donald Trump’s court hearing has been set for Tuesday afternoon, according to the BBC’s US partner CBS News.
The former president is expected to fly from Florida on his private plane and hand himself in with federal agents there to protect him.
A grand jury has indicted Mr Trump in connection with a $130,000 (£105,000) pay-out to porn star Stormy Daniels.
The charges are not yet public, and a lawyer for Mr Trump said on Friday that he too has yet to read the indictment.
A law enforcement official told CBS that Mr Trump is expected to fly his private plane to New York on Monday before surrendering to officials on Tuesday.
The process is likely to involve dozens or possibly hundreds of Secret Service agents, the official added, speaking on condition of anonymity.
Mr Trump will not be handcuffed, the official added, saying that shackles are typically only used on suspects who are thought to be a flight or safety risk.
The hearing is due to take place at 14:15 local time (19:15GMT).
Mr Trump’s lawyer, Joe Tacopina, told ABC News that Mr Trump will “probably” appear in court on Tuesday, “but nothing is certain”.
Prosecutors “will try and get every ounce of publicity they can from this thing”, he said, adding “the president will not be put in handcuffs”.
“I understand they’re going to be closing off blocks around the courthouse, shutting down the courthouse,” he continued.
Security is being co-ordinated by the FBI, NYPD, Secret Service and New York City court officers.
Sources tell CBS that they are bracing for possible scenarios that include attacks against Mr Trump, prosecutors, jurors or members of the public. The district attorney’s office has received “many threats”, the sources said.
On Friday morning, the streets around the courthouse were calm but the barricades were going up in anticipation of what may come next week.
Police officers were on patrol and security plans were being put into place. Many expect the area to go into lockdown when the former president attends court.
The district attorney’s office had initially asked Mr Trump to surrender on Friday, according to Politico, but the request was rejected because more time was needed for security preparations.
Mr Trump, 76, denies wrongdoing. He is the first serving or former US president to face a criminal charge.
It is unclear how many charges are contained in the indictment, which is still sealed.