A critical component of our much vaunted consitution is the concept of an independant judiciary.
It may be the most urgent question facing President Jacob Zuma: whether to use his powers of appointment to rein in the courts, where he has faced his most difficult battles, or to facilitate the rebuilding of an independent judiciary from the wreckage of the ANC’s succession battles.

The signals are mixed.
full story from M&G here
It seems the concept of an independant judiciary is subject to the whims of politicians.