These sumptuary laws proved unenforceable, but the wider labour laws continued to be firmly applied.

Once in place, Prohibition proved virtually unenforceable.

These proved unenforceable over time, particularly when backyard pools became financially accessible to the working class and privacy concerns drove many to fence off their yards.

The penalties were regarded as so punitive that they proved unenforceable.

Many of these same observers feel that the law will prove unenforceable, and the flood of illegals will resume.

But as with the French scheme it proved unenforceable: the seven-day week had too strong a hold.

The supposed means of retrospectively obtaining payment from the patient's Member State will prove unenforceable.

At best, they proved mostly unenforceable and at worst they contributed to a continent-wide downward spiral.

The theoretical agreements between these governments quickly proved practically unenforceable, even though they were enough to disrupt the traditional transhumance of communities in the region.

At best, they proved mostly unenforceable.