An electoral law specialist says there's no easy solution to controlling donations to political parties by foreigners.
MPs on the Justice Select Committee were told by the head of the Security Intelligence Service, Rebecca Kitteridge, yesterday the spy agency was aware of what she called 'troubling' overseas donations at both central and local government level.
Professor Andrew Geddis from Otago University told RNZ deputy political editor Craig McCulloch solutions come with their own problems.