noun
A person in charge of inspection or checking, often in a workplace or official context. The glosses 'gauger' and 'passer' are less common translations; 'inspector' or 'examiner' are more natural.
工場の検査係が製品の品質を確認する。
The factory inspector checks the quality of the products.
彼は税関の検査係として働いている。
He works as an inspector at customs.
Compound of 検査 (inspection) and 係 (person in charge).