When it is necessary for an investigation concerning a delinquent tax collection procedure, a collection official may retain articles submitted in that investigation.
徴収職員は、滞納処分に関する調査について必要があるときは、当該調査において提出された物件を留め置くことができる。
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collection officialmachine translation
「徴収職員」
The district director of a tax office (税務署長) or any other official engaged in the work of collecting national taxes.
Defined inArticle 2, paragraph (1), item (xi)· applies throughout the law