KEY POINTS:
National says a 50-page information pamphlet put out by Labour and aimed at people over 6o is a deliberate ploy to get around electoral law.
Labour argues its "information kit for the over-60s" is a service to their constituents.
Labour says its MPs had printed a total of 64,000 booklets at a cost of $58,000. They are paid for by Parliamentary Service - which also pays for the postage and the cover letter that goes out with it.
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