Two of Mr Gaddafi's bodyguards were also detained after clashing with police
The youngest son of the Libyan leader, Muammar Gaddafi, has been released on bail in Switzerland after being charged with assaulting two of his servants.
Hannibal Gaddafi and his wife, who is heavily pregnant, were taken into custody on Tuesday after the alleged incident at a luxury hotel in Geneva.
The couple face charges of bodily harm, threatening behaviour and coercion. They have denied any wrongdoing.
In 2005, a French court convicted Mr Gaddafi of hitting his girlfriend.
He was given a four-month suspended jail sentence and fined $790.
A year earlier, two of Mr Gaddafi's bodyguards were taken into custody for attacking several French police officers after they stopped him for speeding on the Champs Elysees in Paris.
They were released after Libyan diplomats apologised. Mr Gaddafi was also detained, but was released because he had diplomatic immunity.
It is still unclear whether Mr Gaddafi has immunity in Switzerland, where he and his wife had travelled for the birth of their child.
Earlier, one of his lawyers, Robert Assael, said that two of his staff, a Moroccan man and a Tunisian woman, had accused the couple of hitting them in their suite at the President Wilson Hotel.
They then showed a judge their injuries, which were confirmed by a medical certificate, he added.
Two of Mr Gaddafi's bodyguards were also detained after they clashed with police making the arrests, local media reported.
Mr Gaddafi was freed on a bail of 200,000 Swiss francs (124,000 euros), while his wife was freed on an additional bail of 300,000 francs (186,000 euros), officials said.