The commission or administrator may suspend or cancel a wine only package store permit after giving the permittee notice and the opportunity to show compliance with all requirements of law for the retention of the permit if it finds that a breach of the peace has occurred on the licensed premises or on premises under the control of the permittee and that the breach of the peace was not beyond the control of the permittee and resulted from his improper supervision of persons permitted to be on the licensed premises or on premises under his control.