The pair were working more than 600 metres underground before they fell more than 30 metres.

Queenstown police Inspector Matthew Richman said investigations were ongoing.

``At the moment mine inspectors and Tasmania Police are continuing their investigations. Our intention is to try and clear up most of the personal interviews that we needed to do,'' Inspector Richman said.

Inspector Richman said Mr Lucas and Mr Gleeson were conducting maintenance work on level 18 of the mine, but  he would not go into anymore detail.

``Investigations like this are extremely complex and there will have to be a lot of work to go into it and the coroner will go through the process to make his determination,'' he said.

The community had been hit very hard by this and has been a very sombre feeling, there will be a lot of heart felt conversations, Inspector Richman said.

``The mine rescue people did a terrific job as it was especially hard for them _  they lived and worked with the men.''

Inspector Richman wouldn't comment on speculation the men weren't wearing safety harnesses at the time of the fall.

``They were in a position in a mine shaft, but I'm not prepared to go into any detail.

``Clearly there is a whole range of things we are looking at and that (wearing safety harnesses) will be a significant part of that and what exactly were the circumstances behind it.''