The common law has not proved a great source of procedural protection for aliens.

Part of the reason is that the law has proved almost comically difficult to enforce.

It was something that the law had not yet proven.

The new laws have even proved popular with trade union members.

Even if neither threat proves real, the law will almost certainly prove unsustainable.

The law has proved to be beneficial to employees and employers alike.

Unless the law can prove otherwise, it cannot take the box.

But the law has also proved to be a powerful agent of national political realignment.

Even a number of treatment centers, for whom the new law could prove a bonanza, are skeptical.

However, the law would also prove to be a major political liability for Arthur.