There are few rules about proving where it came from or that it was mined in line with international labour standards.

Second, to ignore social policy, and have lots of free trade with labour standards decided at national level so the voters have control.

There are questions about the initiative's adherence to international environmental and labour standards.

When she complained to the labour standards office she was turned away because its services did not extend to workers in the water trade.

We have very high labour standards.