The direct effect is an effective enforcement mechanism to ensure that Member States comply with EU laws. Drake stated if a Member State fails to implement a directive correctly or by the prescribed date individuals may be deprived of their full Community rights. This is a great way to ensure that the directives are complied with as the Member States want their citizens to have all of the necessary rights.
Another mechanism is indirect effect which according to Practical law is a principle of interpretation whereby the courts of the member states of the EU must interpret national legislation as far as possible in a manner that is consistent with provisions of EU law. Indirect effect was seen in Von Colson. In which the ECJ held that the national law must be stretched to accommodate the directive and so stated the provision entitles individuals to a remedy which provides real and effective judicial protection and has a real deterrent effect on the employer. Drake stated it followed that national courts were under an obligation to interpret national law in order to ensure that the claimants were able to invoke their right to an effective and adequate remedy. Indirect effect gives the power to individuals to sue other individuals horizontal due to a directive. This is an effective enforcement method as it shows that sanctions are willing to be imposed for non compliance. The final mechanism is state liability.