(69)It is necessary to enhance convergence of powers at the disposal of competent authorities so as to bring about the equal enforcement of this Directive throughout the Member States. A common minimum set of powers, consistent with those conferred upon competent authorities by other Community financial services legislation should guarantee supervisory effectiveness. In addition, Member States should lay down rules on penalties, which may include criminal or administrative penalties, and administrative measures, applicable to infringements of this Directive. Member States should also take the measures necessary to ensure that those penalties are enforced.