A witness has denied being involved in an attempted robbery of two French tourists on her driveway in October 2017.
Chantel Elizabeth Dance gave evidence in Billy Galvin Gordon Riley's Launceston Supreme Court trial on Monday.
Mr Riley has pleaded not guilty to attempted aggravated armed robbery.
It is alleged the accused and Brereton James Jones were armed with a gun and a pogo stick when they demanded two French tourists give them money.
The tourists were at Ms Dance's South Launceston house to inspect the car she was selling.
After taking the car for a test drive, the court heard the tourists were standing on the driveway talking to Ms Dance when two men who'd concealed their identities appeared.
The men were allegedly armed with a replica handgun when they demanded money from the tourists.
Ms Dance said the French woman told the alleged robbers she didn't have any money and the two men eventually fled.
Defence lawyer Patrick O'Halloran asked Ms Dance if she was selling her car because she needed to pay Mr Jones for a drug debt.
Ms Dance said the only reason she was selling her car was because she lost her licence.
The court heard on the day of the alleged attempted robbery, Ms Dance gave Mr Jones lifts at 9am and in the early afternoon, spending about 45 minutes with him in total.
Ms Dance said Mr Jones - also known as Bob - wanted to borrow her car when she saw him the second time, but she told him he couldn't because two people were coming to inspect it.
Mr Jones was the only person who knew the exact time the tourists were coming to Ms Dance's house, the jury was told.
Mr O'Hallran asked Ms Dance if she'd made an agreement with Mr Jones to rob the tourists to pay back her debt.
There was "definitely no agreement", Ms Jones said.
"I didn't owe Bob any money," Ms Dance said.
Crown prosecutor John Ransom told the court police found the fake gun in the garage of Mr Riley's Kings Meadows house.
Forensic testing of the imitation gun found three contributors; one was unidentifiable but the other two matched DNA samples from Mr Riley and Mr Jones. The trial before Chief Justice Alan Blow will continue on Tuesday.