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File photo. Immigration Minister Erica Stanford.

Immigration Minister Erica Stanford has issued a scathing takedown of her ministry, saying officials "deliberately withheld" information from both her and the previous Labour government about a failed technology upgrade.

Appearing before MPs at a Scrutiny Week appearance on Tuesday morning, Stanford said Public Service Commissioner Sir Brian Roche would investigate "integrity concerns" raised by a damning review.

Sitting alongside her, Ministry of Business, Innovation and Employment (MBIE) chief executive Nic Blakeley offered an apology to MPs and said he took accountability on behalf on his department.