Jones, CPA, is in court defending himself against a lawsuit filed under the 1933 Securities Act. The charges have been filed by purchasers of securities covered under that act. If the purchasers prove their required elements, in general, Jones will have to prove that he performed the audit with due diligence because the purpose of an audit is to provide,tender an objective independent examination reasonable assurance on financial matters and provide financial statement users with an opinion on whether the statements are prepared in accordance with the proper reporting framework.Jones will have to prove and provide evidence that he worked within the guideline and framework as CPA auditor.