While this effect has been known for more than a century, the study produced evidence.

"Do the people intend to produce evidence on the point?"

Is there no one against whom you can produce really concrete evidence?

Person A makes a statement and produces evidence to back it.

Meanwhile the police have produced new evidence which they hope will lead them to the killer.

"The evidence produced in this case was massive," he added.

The Chinese authorities have not produced evidence to support the charges against him.

He ruled that the evidence produced during the civil case should be available to other lawyers and the press.

The Commission will then consider appropriate action to be taken in the light of the scientific evidence produced by these activities.

That's what the opposition now charges, without as yet producing much hard evidence.