piece of evidence

Yet the piece of evidence could not have come at a better time.

But the story goes back further than these pieces of evidence.

It was the piece of evidence for which they had been waiting.

They haven't been able to run down a single piece of written evidence on this business at all.

It became the key piece of evidence at his trial.

That was also the only legal piece of evidence they had.

But other important pieces of evidence have long been lost as well.

But the other piece of evidence is much more serious.

But the police never followed up on this piece of evidence.

Where have you found even one piece of economic evidence to support such a statement?