double-checked

We need at least four to six months to have some kind of evidence and also evidence that has been checked and double-checked.

They had checked, double-checked, and septuple-check all the numbers.

I had double-checked with the airlines at all transit stops.

I never interview a student personally until the tenth year—so I quite naturally had his files double-checked.

I learned by accident that all my records were checked and double checked, which was altogether unusual.

Well; I would say it would be there unless it had been mutilated, and it's double checked by this Mr. McRee's secretary.

They were at the exact place noted there: checked and double-checked.

It's surprising how much easier the air got to breathe after we'd double-checked the idea.