Scotland Yard has passed a file of evidence to Australian police over a prank call to the hospital where the Duchess of Cambridge was treated for morning sickness during the early stages of her pregnancy.
British prosecutors have already said that no legal action will be taken in this country over the call, but the Metropolitan Police sent the information to the Australian Federal Police and New South Wales police.
A spokesman said: "On 9 July the Metropolitan Police Service (MPS) passed a file to the Australian Federal Police and New South Wales police in relation to a hoax call made to the King Edward VII Hospital on December 4 2012. The MPS has requested that consideration is given as to whether any offences were committed under Australian legislation.
"Following an investigation by the MPS into this matter a file was passed to the Crown Prosecution Service (CPS) in December 2012. On February 1 2013 the CPS advised no charges would be brought in the United Kingdom."
Earlier it was reported that one of the DJs who made the call is taking legal action against the radio station. Mel Greig is accusing her employer Southern Cross Austereo of failing to provide a safe workplace at 2Day FM radio station, the Melbourne Age has reported.
Nurse Jacintha Saldanha was found dead three days after Ms Greig and her colleague Michael Christian called King Edward VII's Hospital, where Kate was being treated for severe morning sickness in December, pretending to be the Queen and Prince Philip.
Ms Greig's lawyer, Steven Lewis of Slater & Gordon, told Fairfax Media: "I can confirm that a general protections application has been filed with Fair Work Australia on behalf of Mel Greig against Southern Cross Austereo.'
The application alleges Southern Cross Austereo failed to maintain a safe workplace in relation to the hoax phone call incident.
Ms Greig has not returned to work since the incident but Mr Christian was controversially awarded the internal "Next Top Jock" competition for DJs at his employer which aimed to find the "best in the land".
Ms Greig's legal action comes as Southern Cross Austereo awaits a decision from the Federal Court about the authority of the broadcasting watchdog, the newspaper reported.