ICAC

The Rann government suggests SA is without corruption and an ICAC will cost too much. The head of ICAC from NSW (retired QC and supreme court judge) was on 5AA this morning and argued that an ICAC would more than pay for itself with recovered funds from corrupt acivities. Why is the Rann government so reluctant to push ahead with something that seems to have community support? Does anyone seriously belive there is no or negligible corruption in SA?