Which of the following is a key component of the anti-discrimination laws in the EU?

The shift of burden of proof to the worker is a key component of anti-discrimination laws in the EU. This means that once a worker presents evidence of discrimination, the burden shifts to the employer to prove that the decision or action in question was not discriminatory. This approach reflects a commitment to creating a more equitable environment for workers, as it acknowledges the difficulties individuals often face in combating discrimination. By placing the onus on the employer, the law encourages accountability and requires them to justify their actions, thereby fostering a more just workplace culture where discriminatory practices are challenged more effectively.

The other options do not encapsulate the essence of anti-discrimination efforts within the EU. Written complaints are one avenue for reporting discrimination but are not a defining feature of the law itself. Timely financial audits relate more to financial accountability rather than discrimination specifically. Lastly, automatic employer accountability without evidence would not align with legal principles of due process and fairness, as it could lead to unjust outcomes where employers are held liable without substantial proof of misconduct.