Previously classified documents released by the inquiry into Operation Burnham show the NZDF thought civilians may have been killed in the days following an attack in Afghanistan.
Twenty-two documents, 14 directly relating to Operation Burnham, have been uploaded to the Inquiry website.
It comes ahead of a public hearing on 22 May into allegations that six civilians were killed in Afghanistan during a New Zealand-led raid in 2010, and the military covered up what happened.
The allegations were detailed in the book Hit and Run written by journalists Nicky Hager and Jon Stephenson.
The New Zealand Defence Force denies the allegations.