The man, who cannot be named for legal reasons, has pleaded not guilty to rape and three counts of assault against his partner of 15 years.  

It is alleged the man punched, raped and threatened the life of his partner over three separate days in January 2018. 

Crown Prosecutor Peter Sherriff gave his closing address on the third day of the Launceston Supreme Court trial.

Mr Sherriff urged the jury to re-watch the accused's 80-minute police interview to see the way he answered questions.  

The accused wanted to paint the picture he was in control the whole time and his partner was the aggressor, Mr Sherriff said. 

During the interview the accused told police he was "fried" at different stages over the weekend because he smoked ice four times in three days. 

Mr Sherriff said the accused was interviewed two days after the last incident, but his memory of the most recent days weren't as good. 

"Maybe that's what happens when you're fried, I don't know," Mr Sherriff said. 

During his closing, defence lawyer Mark Doyle said details were crucial to judging accuracy and the evidence heard throughout the trial was confused at best. 

Mr Doyle said the alleged victim was very uncertain as to when things happened. 

Mr Doyle told the jury important pieces of evidence were not presented, including CCTV footage and phone records. 

The trial before Justice Robert Pearce will continue on Monday.