Cristina,lula,humala Ex- Presidents Investigated/convicted

Former Presidents of Argentina, Brazil and Peru investigated or Convicted for Corruption in the Odebrecht Gate, more may follow. Correa and Maduro?
Former Politicians get investigated when the leave Office..! While in Power they have protection? Will Evo Morales also be investigated in the future?
The only Honest one for the moment is Jose Mujica from Uruguay, ? he still drives his 1960? VW Beetle.

Ollanta Humala is under arrest house for 18 months until tried and convicted?