DJ MKHIZE
I think that they were attacked because they were Kwazulu policemen whom the ANC was against.  The ANC held many demonstrations, saying that ZP's should be done away with.  Therefore the animosity between the IFP and the ANC is a well-known fact.  It is something well-known to the Esikhawini community that ZP's were not popular in this area.  And because of their actions such as investigations that they carried out.