go over with a fine-tooth comb

“Keffe, today what we’re going to do, we’re just going to go over with a fine-tooth comb the Las Vegas incident,” Kading said at the time, according to transcripts.

“Everything we do we go over with a fine-tooth comb,” said tight end Julius Thomas, who made two clutch third-down catches on the Broncos’ final drive in a victory against the San Diego Chargers last Sunday.