A second person is to be charged with perverting the course of justice, in relation to the final appeal of convicted killer Sue Neill-Fraser.
Last week, 41-year-old Karen Patricia Nancy Keefe appeared in court charged with corrupting a witness and perverting the course of justice.
On Monday morning, Tasmania Police said a 57-year-old man from Risdon Vale would also be charged.
He was due to appear as a witness at Neill Fraser's last-chance appeal against her conviction for the 2009 murder of her partner Bob Chappell.
The man will be summonsed to appear in court at a later date.
Police said further charges may be laid.
Susan Neill-Fraser, 62, is currently serving a 23-year jail term for the murder of Mr Chappell on board their yacht Four Winds, moored off Sandy Bay in January 2009.
After a number of attempts to prove her innocence, Neill-Fraser has another chance at freedom due to right-to-appeal legislation passed by the Tasmanian Parliament in 2015.
Those laws mean Neill Fraser's legal team must convince the court there is "fresh and compelling evidence", in order to win the right to another appeal.
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