1. 1. Where the requested authority has decided to allow the requesting authority to carry out the on-the-spot verification or investigation, such on-the-spot verification or investigation shall be carried out in accordance with the procedure provided for in the law of the Member State on whose territory the on-the-spot verification or investigation is to be conducted.
2. 2. Where the requested authority has decided to allow the requesting authority to carry out the on-the-spot verification or investigation, it shall provide the necessary assistance to facilitate that on-the-spot verification or investigation.
3. 3. If the requesting authority discovers material information relevant for the discharging of duties of the requested authority during its on-the-spot verification or investigation, it shall without undue delay transmit this information to the requested authority.