1. Where Member States have chosen, in accordance with Article 42, to lay down criminal sanctions for infringements of the provisions referred to in that Article, they shall ensure that appropriate measures are in place so that competent authorities have all the necessary powers to liaise with judicial authorities within their jurisdiction to receive specific information relating to criminal investigations or proceedings commenced for possible infringements of this Regulation. Those competent authorities shall provide that information to other competent authorities and ESMA, in order to fulfil their obligation to cooperate with each other and ESMA for the purposes of this Regulation.
2. Competent authorities shall provide assistance to competent authorities of other Member States. In particular, they shall exchange information and cooperate in any investigation or supervisory activities. Competent authorities may also cooperate with competent authorities of other Member States wit