Compare the South African prosecutional stasis to movement in Brazil as reported today by AFP in Daily Maverick: 

In Brazil: 
It is "essential" that the suspects be detained "as a guarantee of public order" to allow their assets to be blocked, and to stop them from engaging in any criminal act or interfering with evidence, the Rio prosecutor's office said in a statement.

In South Africa: 
"It is essential as a guarantee of public order that:
(1) the suspects not be detained;
(2) they be allowed to grow and expatriate their ill-gotten assets;
(3) they be allowed to engage in further criminal acts and interfere with evidence; 
(4) they be supported unconditionally and with no expense spared by all state institutions to achieve (1)-(3)