1.The Commission shall, by 6 April 2015, submit a report to the European Parliament and the Council, assessing the extent to which the Member States have taken the necessary measures in order to comply with this Directive, including a description of action taken under Article 18(4), accompanied, if necessary, by legislative proposals.
2.The Commission shall, by 6 April 2016, submit a report to the European Parliament and the Council, assessing the impact of existing national law, establishing as a criminal offence the use of services which are the objects of exploitation of trafficking in human beings, on the prevention of trafficking in human beings, accompanied, if necessary, by adequate proposals.