New Zealand could be cranking up its response to Russia's invasion of Ukraine, as cabinet meets today.
New measures on the table include a specific law change to target Russian investment.
Other western nations have used powers in Magnitsky laws - which target corrupt officials and human rights offenders - to go after Russia's president.
The architect of the US' Magnitsky Act, and chief executive of Hermitage Capital, Bill Browder, spoke to Susie Ferguson.
