Donald Trump faces imminent arrest on charges stemming from an investigation into a $130,000 (£106,000) payment to porn star Stormy Daniels in 2016.
The 76-year-old departed Florida on Monday, landing in New York ahead of his arrest and court appearance on Tuesday.
He is the first former US president to face criminal charges, but it won’t be clear what the charges are until the indictment is unsealed at his arraignment.
When will Trump be arrested?
Mr Trump is planning to surrender to authorities on Tuesday, and his arraignment is scheduled for 14:15 local time (19:15 GMT). He will likely arrive at the courthouse about an hour or so before that for processing.
The former president is expected first to surrender at the office of Manhattan District Attorney Alvin Bragg.
The usual arrest paperwork will be completed – meaning his details will be taken and investigators will check for any outstanding arrest warrants or charges.
Once Mr Trump is fingerprinted and processed by officials, he is considered under arrest and in custody.
Will there be a ‘perp walk’?
A “perp walk” refers to when law enforcement officers walk a suspect up to a courthouse through a public space, giving spectators and the media full view of the arrest to remains unknown whether Mr Trump will be walked up to the Lower Manhattan courthouse in such a manner ahead.
It is also unknown whether a mugshot of the former president will be taken when he is booked at the Manhattan courthouse.
One of Mr Trump’s lawyers, Alina Habba, told CNN on Monday that she does not believe a mugshot is needed because the former president is an easily recognisable figure.
