1. Competent authorities of different Member States shall cooperate with each other where necessary for the purpose of carrying out their duties under this Directive or under Regulation (EU) No 600/2014, making use of their powers whether set out in this Directive or in Regulation (EU) No 600/2014 or in national law.

 Where Member States have chosen, in accordance with Article 70, 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 Directive and of Regulation (EU) No 600/2014 and provide the same to other competent authorities and ESMA to fulfil their obligation to cooperate with each other and ESMA for the purposes of this Directive and of Regulation (EU) No 600/2014.

 Competent authorities shall render assistance to competent authorities of the 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 with respect to facilitating the recovery of fines.