The lawyer for the families of the Pike River Mine victims says new footage reinforces the call for re-entry to the mine.
Footage has emerged of a robot inside the drift of the mine, just months after the explosion in 2010.
That has angered Pike River families who have been fighting for access to where their 29 loved ones died, for six years.
In the footage, workers in breathing apparatus can be seen sticking cardboard onto the robot before it moves along the access tunnel.
A police report said the families had already been shown the footage, although they say otherwise, claims NZ First leader Winston Peters.
READ MORE: Winston Peters: 'Pike River footage another cover up'
Nigel Hampton QC told Newstalk ZB's Chris Lynch the footage shows re-entry is possible and it should be a manned one.
"And I think the Government and Solid Energy should be sitting down, experts on both sides including on the families' side, nutting out a proper staged, manned re-entry."
He said the focus of that re-entry would be on finding the 'taxi' - that's the vehicle used to transport workers from the mine to the surface.
"If it is there, it's possible that there will be the bodies of workers down there as well, recoverable."
LISTEN ABOVE AS NIGEL HAMPTON QC SPEAKS WITH CHRIS LYNCH
This morning, Prime Minister Bill English said the video footage doesn't change anything.
English told Mike Hosking he can understand the families' reaction, particularly with the way it was presented.
"It doesn't really change the safety assessment about whether it is okay to go for manned entry, and it doesn't change what we're doing on unmanned entry."
Mr English insisted there has been no cover-up of the Pike River disaster.
"It's absolutely understandable that the families would want to get in there if they possibly could, that's why the process has been so thorough.
"I think some of this discussion about a cover-up and so on doesn't really help much at all."