INJECTING saliva into a bound man was a ``truly evil'' twist in a violent 12-hour ordeal, a Launceston jury has heard.
Crown prosecutor John Ransom said in his closing statement that the alleged victim deserved justice regardless of his criminal and drug history.
Nathan Henry John Riley, 33, formerly of Waverley, has pleaded not guilty to two counts of assault on Timothy Robert Saggers, who was then 22.
During the Supreme Court trial, Mr Saggers admitted that he had been a habitual drug user at the time with a history of dishonesty.
`` Does that mean he deserves what he gets . . . leave it to the law of the jungle? No, we don't, we live in a civilised society,'' Mr Ransom said yesterday.
The Crown has accused Mr Riley of assaulting Mr Saggers in a caravan parked at Ravenswood by punching him, hitting him with a hammer and metal tube, tying his hands and feet and injecting him with saliva in April 2012.
He is then alleged to have taken Mr Saggers to a shed on the same property, tied him to a deck chair, poured petrol over him and put a shotgun to his head after he tried to escape.
Evidence on the alleged assault was provided by Mr Saggers and his friend Edward Richards, but their accounts allegedly differed in some areas.
In his closing statement, defence counsel Adrian Hall referred to inconsistencies as evidence of a conspiracy against his client.
``These are two people who have got their heads together but haven't got their stories right,'' Mr Hall said after learning that the two men had contacted each other on Facebook before the trial.
``These are details that come from people telling fairy tales.''
The jury also heard that Mr Richards had been given immunity from prosecution arising from his evidence, which included receiving drugs in return for locating Mr Saggers for Mr Riley.
This gave him ``free rein to point the finger at Mr Riley''.
However, Mr Ransom said the medical evidence strengthened the credibility of the Crown's case.
The jury was shown photos of Mr Saggers's injuries, which included a punctured lung and fractures to the ribs, nose and cheek, along with black eyes.
He also developed an abscess where he was allegedly injected with Mr Riley's saliva.
DNA testing turned up blood belonging to Mr Saggers from items taken from the scene.
However, Mr Hall said the lack of Mr Riley's DNA on any of the items supported his client's claim that he wasn't there at the time.
Justice Helen Woods will begin summing up on Monday.