Rules for document retention presume paper records.

文档的产权保持力规则仍停留于纸质文档。

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Thus, common document retention policies fore-mail and electronic documents are not completely effective or reliable.

因而普通的文件保留政策，对电子邮件和电子文件来说，并不是完全有效或者可靠的。

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A document retention policy that includes both deleting and wiping electronic documents, however, is not without concerns.

然而规定了删除和清除电子文件的文件保留政策，也令人有所顾虑。

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Moreover, the ruling may force a more narrow reading of the new document-retention law under Sarbanes-Oxley.

ECONOMIST: Better late than never? Tell that to Arthur Andersen

If the appeal had failed, they insist, a pall would have been cast over all document-retention policies.

ECONOMIST: Better late than never? Tell that to Arthur Andersen