Sir Mark Thatcher may be interviewed later this week over his involvement in an alleged African coup.
Sir Mark Thatcher was arrested at his Cape Town home
A team of state prosecutors from Equatorial Guinea have arrived in South Africa, where Sir Mark lives.
They have submitted a list of questions they want to put to the businessman, who is the son of former UK Prime Minister Baroness Thatcher.
The 51-year-old, who denies any involvement in a coup, faces 15 years in jail if convicted.
He was freed from house arrest on Friday, reportedly after the £167,000 bail was paid by Baroness Thatcher, 78.
But he cannot leave the Cape Peninsula and must contact police every day.
His advocate Peter Hodes said Sir Mark will not be seen this weekend, but
could be seen once his legal team have seen the list of questions.
"We read in the press that the Equatorial Guinea officials have sent a list
of questions to the Department of Justice.
"We asked to see those questions
before allowing them to see our client," Mr Hodes told the South African Press
The case centres on an alleged plot to topple President Teodoro Obiang.
Sir Mark is accused of helping to fund the purchase of a helicopter, breaching laws banning South African residents from taking part in foreign military action.
He is due to return to court in mid-November.