government auditor can audit and report

Can any body tell me if the Auditor General can go through a private companies books.Especially when the effects of trading and the enviromental politics are belligerantly bagged by a leader of state who is dying politically,and infers he is qualified to state that the catchment waters are not what a doctor and independent tests state otherwise.In fact the testing of the run off according to the article indicates that there is--- wait for it--NON.Again,the article states that particular testing is not done for pesticides

So Premier Bartlett how is it now?