Clearly, public financing of elections has to be linked to vigorous enforcement.

A strong law, vigorous enforcement and an ambitious publicity campaign have been given credit for the results.

He says that with more vigorous enforcement, the state can do even better.

That's why I support the most vigorous enforcement of the civil rights laws.

"I favor a vigorous enforcement of existing laws," he said.

"That means there needs to be more vigorous enforcement of the safe zones than has been necessary in the past."

May also be applied to the vigorous enforcement of a patent.

There have also been rumblings in Washington over the last two years for more vigorous enforcement of the act.

If you don't have vigorous enforcement, public confidence is going to fail.

This is why we need vigorous enforcement by competent authorities.