At the hearing, the burden of proof shall lie with the Business Licensing Officer. Upon hearing the petition of the Business Licensing Officer and the response of the licensee at such public hearing, the Business License Appeals Board may suspend or revoke the permit if it finds that any of the grounds set forth in Section 12-1.518 of this article exist or have occurred. The Business License Appeals Board shall deny the petition for a suspension or revocation if it finds that none of such grounds for suspension or revocation exist or have occurred. (§ 2, Ord. 960, eff. October 6, 1983)