Over 7,000 people are bringing an equal pay claim against the Asda supermarket chain.
The claim deals with the time period since the 2010 Equality Act. Workers in the chain’s distribution centres are paid more than those in the stores.
If it’s successful it could result in the difference in pay being backdated for six years.
However, it could also mean that the pay of workers in distribution is lowered to match those in the stores.
Workers cannot rely on the bosses’ courts to uphold their rights.
The GMB union first brought an equal pay claim against Asda in 2008 for 300 workers in Manchester and Liverpool but withdrew to get the bosses into a seven-year negotiation.
The process is ongoing but shows that equal pay is not guaranteed by the EU.
Workers have won these rights and must defend them themselves.