One case relates to an alleged plot to escape from jail, and the other involves extradition matters.

The Czech criminal fugitive has been behind bars in South Africa since 2013.

In August last year, the High Court in Johannesburg found him guilty of kidnapping, attempted drug dealing, and attempted murder.

He is being kept in solitary confinement in Kgosi Mampuru II prison in Pretoria.

At his last appearance in December, the court heard he was suffering from the side effects of prescribed medication. He apparently complained about dizziness, nightmares, depression, continuous suicidal tendencies, confusion, and an inability to concentrate.

The escape case was previously postponed to arrange for legal representation for two of Krejcir's co-accused, Solly Metlae and Marcello Harrison. They allegedly conspired to help Krejcir escape from Zonderwater prison in Cullinan, near Pretoria.

Krejcir had appeared along with two former lovers, Vanessa Naidoo and Marissa Christopher, and three correctional services officials linked to his alleged escape attempts.

News24