Johannesburg - Police were on Friday searching for one of Czech fugitive Radovan Krejcir's sons, the Palm Ridge Magistrate's Court heard.
As Krejcir was testifying, he said his lawyers had told him police had arrested his wife Katerina Krejcirova and were now searching for his adult son Dennis.
Krejcirova was arrested at the court while proceedings had been temporarily adjourned.
Piet du Plessis, a member of Krejcir's legal team, said Krejcirova was arrested in connection with an allegedly stolen vehicle found on the couple's Vaal property.
Dressed in black, Krejcirova was led out of court by heavily armed police and taken into custody.
Krejcir said if he was not granted bail, there would be no-one to take care of his four-year-old son after he had been informed that his wife would appear in court only on Monday.
Krejcir said while his mother was in the country, she was incapable of taking care of the boy as she spoke no English and was not in good health.
She had recently suffered a heart attack and had hurt her back.
Krejcir's mother sat in the front row of the public gallery listening to proceedings.
In cross-examination, prosecutor Louis Mashiane pointed out that in an earlier testimony Krejcir had told the court he had domestic workers, security guards, and a chef at his home.
This was Krejcir's third bail application following his arrest in November.
He is being held on kidnapping and attempted murder charges. - Sapa