1. Member States shall take the appropriate measures, in accordance with their national judicial systems, to ensure that, when workers who consider themselves wronged because the principle of equal pay has not been applied to them establish before a competent authority or national court facts from which it may be presumed that there has been direct or indirect discrimination, it shall be for the respondent to prove that there has been no direct or indirect discrimination in relation to pay.
2. Member States shall ensure that, in administrative procedures or court proceedings regarding alleged direct or indirect discrimination in relation to pay, where an employer has not implemented the pay transparency obligations set out in Articles 5, 6, 7, 9 and 10, it is for the employer to prove that there has been no such discrimination.
The first subparagraph of this paragraph shall not apply where the employer proves that the infringement of the obligations set out in Articles 5, 6, 7, 9 and 10 was manifestly unintentional and of a minor character.
3. This Directive shall not prevent Member States from introducing evidential rules which are more favourable to a worker who institutes an administrative procedure or court proceedings regarding an alleged infringement of any of the rights or obligations relating to the principle of equal pay.
4. Member States need not apply paragraph 1 to procedures and proceedings in which it is for the competent authority or the national court to investigate the facts of the case.
5. This Article shall not apply to criminal proceedings, unless national law provides otherwise.