International desk: Former US President Donald Trump is due to appear in a New York City courthouse on Tuesday.

This will be the moment when the criminal charges against him – the first against a US president – will be made public.

Mr Trump denies any wrongdoing.

Here’s what to look out for:

1. What are the actual charges against Trump?
Manhattan District Attorney Alvin Bragg has been investigating a $130,000 (£105,000) payment made by Mr Trump’s former lawyer Michael Cohen to porn star Stormy Daniels, which was made to keep her quiet about an alleged affair.

This is not illegal, and Mr Trump has acknowledged reimbursing Mr Cohen for the payment.

What Trump indictment means – a simple guide
However, when he reimbursed Mr Cohen, the record for the payment says it was for legal fees.

Prosecutors say this amounts to Mr Trump falsifying business records, which is a misdemeanour – a criminal offence – in New York, and we expect the charges to be related to that.

Mr Trump’s lawyer Joe Tacopina said last week that he believed the case against Mr Trump could include 30 separate charges – possibly because each cheque that Mr Trump wrote to Mr Cohen would be counted separately.