paper trail

Sometimes the paper trail goes through six or seven countries.

So they can get word out without leaving a paper trail.

"That makes the paper trail even more difficult to follow here."

And when something does go wrong, there is a paper trail to follow.

Anything short of that, there'll be a paper trail he can follow.

Michael Wood goes on a paper trail, looking for the answer to this question.

You know when there's a paper trail like that, someone's trying to cover up.

I had to move, change her name, make up report cards so as not to leave a paper trail.

Well, he'd found a way to obtain a car without a paper trail.

"The only reason we get to know about this is there was a paper trail," he said.