Starmer added if MPs in Parliament wanted a debate on Mountbatten-Windsor’s links with Jeffrey Epstein he “wouldn’t stand in the way”.
The prime minister’s comments are the latest development in the aftermath of millions of released files revealing Mountbatten-Windsor’s close relationship with Epstein.
The latest tranche of files last month included pictures of him kneeling on all fours over a woman lying on the ground, while other files repeatedly reference him.
Thames Valley Police is currently assessing allegations, first reported by the BBC, that a second woman was sent to the UK by Epstein for a sexual encounter with Mountbatten-Windsor.
The encounter allegedly occurred at the former prince’s residence, Royal Lodge, in 2010. The woman, who is not British, was in her 20s at the time.
The woman’s lawyer, Brad Edwards said after spending the night with Mountbatten-Windsor at the Royal Lodge in 2010, the woman alleges she was given tea and a tour of Buckingham Palace.
Separately, Thames Valley Police is also assessing whether there are grounds to investigate Mountbatten-Windsor for suspected misconduct in public office and breach of official secrets.
The latest files released by the US Department of Justice appear to show the former prince forwarded sensitive government documents and commercial information to the convicted sex offender Jeffrey Epstein.
In his interview with Breakfast on Thursday morning, Starmer also repeated previous comments he made, suggesting Mountbatten-Windsor should testify in front of US Congress.
“Anybody who has any information should testify. So, whether it’s Andrew or anybody else, anybody whose got relevant information should come forward to whatever the relevant body is,” he said.