go over/through something with a fine-tooth comb

US /ɡoʊ ˈoʊvər/θruː ˈsʌmˌθɪŋ wɪð ə faɪn-tuːθ koʊm/
UK /ɡoʊ ˈoʊvər/θruː ˈsʌmˌθɪŋ wɪð ə faɪn-tuːθ koʊm/
"go over/through something with a fine-tooth comb" picture
1.

passer au peigne fin, examiner minutieusement

to examine something very carefully, looking for mistakes or problems

:
The auditors will go over the accounts with a fine-tooth comb.
Les auditeurs vont passer les comptes au peigne fin.
We need to go through the contract with a fine-tooth comb before signing it.
Nous devons passer le contrat au peigne fin avant de le signer.