The government says it won't investigate further whether the death of a New Zealand aid worker in Ukraine was a war crime, but experts say more could be done.
Andrew Bagshaw and Chris Parry were shot while evacuating civilians in the Soledar region of Ukraine a year ago.
Bagshaw's parents, Sue and Phil Bagshaw, say evidence points to the pair being shot by the Wagner Group, the Russian-controlled private military company.
Ellen O'Dwyer reports.