A woman claiming to possess psychic abilities has told a court that she posted on social media just days before a siege at Trevallyn last year, writing, "If people get shot, don't blame me".
Robyn Lee Brown went to an address at New World Avenue at Trevallyn on December 4, 2018, where she bought a quantity of the drug ice from an acquaintance, Nomi Lea Mountney.
Ms Mountney was there with Brett Julian Robinson-Stacey. Three days later, Ms Mountney and Mr Robinson-Stacey were allegedly involved in a 17-hour siege at the address.
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The pair appeared in the Launceston Magistrates Court on Wednesday after a preliminary proceedings order was made.
Ms Mountney and Mr Robinson-Stacey have each pleaded not guilty to a number of similar charges including grievous bodily harm, recklessly discharging a firearm and create a common nuisance.
Ms Brown alleges Mr Robinson-Stacey shot her in the leg at the Trevallyn address on December 5, two days before the siege broke out.
She said she had gone to the address the day before to buy drugs off Ms Mountney, who was accompanied by Mr Robinson-Stacey.
Ms Brown told Mr Robinson-Stacey's lawyer Patrick O'Halloran that she injected about half of the drugs as soon as she'd purchased them but described their quality as "absolute s---".
"They did f--- all, mate," she told Mr O'Halloran, prompting laughter from some of the people assembled in the public gallery.
"I don't see what's so ... funny about it," she then said.
Ms Brown said she conducted a psychic reading of Mr Robinson-Stacey at his request.
She said she had developed psychic abilities after she began practicing meditation and her "DNA code" had been activated by a crystal.
Ms Mountney then told Ms Brown to leave the address. When Ms Brown stepped out of the front door, Mr Robinson-Stacey is alleged to have put a gun to her head.
"He said, 'If you don't move now, I'll put a bullet in the back of your skull'," Ms Brown said.
Ms Brown posted on Facebook that night, saying she'd psychically divined that a home invasion was going to occur at the Trevallyn address and that she'd tried to let Ms Mountney and Mr Robinson-Stacey know.
He said, 'If you don't move now, I'll put a bullet in the back of your skull'.Robyn Lee Brown
The next day, Ms Brown returned to the address to rob it in an act of reprisal.
A physical fight allegedly erupted between Ms Brown and Ms Mountney.
Mr Robinson-Stacey is alleged to have then shot Ms Brown twice in the leg.
A member of Tasmania Police's Special Operations Group, who attended the siege at the address two days later, told the court he had not only heard Ms Mountney confirm to negotiators that she was a hostage but that he also heard Mr Robinson-Stacey confirm it as well.