The transmission of the certified copy of the decision to place the person under judicial supervision, of the certificate and of all correspondence and documents relating thereto shall be effected directly between the competent authorities of the issuing State and those of the executing State, by any means which leaves a written record under conditions allowing the addressee to verify its authenticity.
Where a State has designated one or more central authorities to receive such transmissions, copies of the decision to place the person under judicial supervision, the certificate and all correspondence and documents relating thereto shall also be sent, if the State so requests, to the designated central authority or authorities.