41 minutes ago

NZ First leader Winston Peters

Winston Peters says he's not surprised by revelations ministers were misled by Immigration NZ officials and claims those responsible "should be put in prison".

Immigration Minister Erica Stanford said on Tuesday officials "deliberately withheld" information from both her and the previous Labour government about a biometrics project and used "creative accounting" to avoid scrutiny.

Speaking to reporters after a scrutiny week hearing for the Racing portfolio, Peters said he told Stanford "some time ago" Immigration New Zealand was the "worst department in this country by miles".