The funeral of the former Yugoslav leader, Slobodan Milosevic, is expected to take place in Belgrade later this week.
The final say rests with a Serbian court, which is to decide tomorrow whether to drop charges of fraud against Mr Milosevic's wife, Mira Markovic.
That would allow her to return from Moscow where she has been living for the past three years.
Mr Milosevic's son has said he would ask Russia for permission to bury his father in Moscow if his family did not get guarantees of their safety in Serbia.
An autopsy carried out by Dutch and Serbian pathologists has established that Mr Milosevic, who died on Saturday in The Hague at the age of 64, suffered a heart attack.
Russia has confirmed that it received a letter from Mr Milosevic in which he complained just days before his death that he had received inappropriate treatment by doctors of the International Criminal Tribunal for the Former Yugoslavia.
In another development, a Dutch toxicologist has said Mr Milosevic had been taking unprescribed drugs which counteracted heart medication in a bid to be sent to Russia for treatment.
