Fine-tooth comb
Meaning: If you go through something with a fine-tooth comb, you examine it in great detail and with great care.
Example: We have gone through the evidence with a fine-tooth comb. We examined the figures with a fine-tooth comb but found no errors.
Example: We have gone through the evidence with a fine-tooth comb. We examined the figures with a fine-tooth comb but found no errors.
