A WITNESS to a 12-hour assault at Ravenswood didn't report it to police for 18 months for fear of incriminating himself, a court has heard.
Edward Richards, formerly of Prospect Vale, said he received drugs in return for helping the accused find Timothy Saggers.
Nathan Henry John Riley, 33, formerly of Waverley, has pleaded not guilty to two counts of assaulting Mr Saggers in April 2012.
On day two of the Supreme Court trial in Launceston, Mr Richards said he saw Mr Riley attack Mr Saggers with a hammer in a caravan parked on a Ravenswood property.
The court had previously heard Mr Riley also doused Mr Saggers in petrol after injecting him with saliva while he was tied up.
Yesterday Mr Richards said he and the caravan's owner, Greta Hodgetts, had picked up Mr Saggers from West Launceston before the alleged assault.
After the two men shot up morphine they travelled with Ms Hodgetts to a home in Waverley.
Mr Richards said the defendant was waiting there with the occupant, who accused Mr Saggers of stealing from her.
The woman said she didn't want anything to happen in her home and the group moved on to the caravan with Mr Saggers "half- forced" into a car by Mr Riley.
Once inside the caravan, the accused and Ms Hodgetts discussed what they should do with Mr Saggers, he said.
Mr Riley began punching Mr Saggers, then 22, before hitting him with a claw hammer, the court heard.
When Mr Richards tried to leave, Mr Riley said "nobody's going anywhere until this is dealt with", he said.
Mr Saggers was then taken into a backyard shed where he was tied to a chair and the beating continued, he said.
After about 12 hours, a decision was made to let Mr Saggers go after people started arriving at the property to score drugs, the Crown witness said.
"Tim was quite heavily threatened not to speak to the police," Mr Richards said.
During cross-examination, Mr Richards admitted speaking to Mr Riley about helping him find Mr Saggers before the incident in return for drugs.
Mr Richards, who now lives interstate, said Mr Riley had insinuated he wanted money from Mr Saggers during the course of the assault.
Earlier in the day, the jury heard from the woman who lived in the house where the caravan was parked.
Ann Louise Wooders said she did not hear any screaming or see Mr Saggers when the assault allegedly took place.
Mr Richards gave evidence she had seen Mr Saggers tied up in her shed.
The court heard none of the items taken from the scene, including the hammer and metal tube used to bash Mr Saggers, contained Mr Riley's DNA.
The trial is expected to finish today.