The development comes barely a year after Mr Mnangagwa said he would step down after his second term.
Mr Mugabe and his ally were arrested after his gardener was shot last week at his residence in Hyde Park in Johannesburg.
Guateng police spokesperson, Colonel Dimakatso Nevhuhulwi, said the shooting happened after an altercation.
Mr Mnangagwa said Zimbabwe had shown it is a “democracy with maturity.”
There is recent evidence that Africans in many countries are increasingly open to the return of military rule under certain conditions.
Wole Soyinka should stop trying to adapt the world to himself. But he won’t. That is what makes all stubborn grandfathers stand out.
The attempt to tamper with electoral materials that would serve as evidence is not only a brazen attack on the sensibilities of over 200 million people but a contemptuous act.
