Article 25 5.

Where a competent authority is convinced that acts contrary to the provisions of this Regulation are being, or have been, carried out on the territory of another Member State or that acts are affecting financial instruments traded on a trading venue situated in another Member State, it shall give notice of that fact in as specific a manner as possible to the competent authority of the other Member State and to ESMA and, in relation to wholesale energy products, to ACER. The competent authorities of the various Member States involved shall consult each other and ESMA and, in relation to wholesale energy products, ACER, on the appropriate action to take and inform each other of significant interim developments. They shall coordinate their action, in order to avoid possible duplication and overlap when applying administrative sanctions and other administrative measures to those cross-border cases in accordance with Articles 30 and 31, and shall assist each other in the enforcement of their decisions.