On Tuesday, Coroner Simon Cooper published his findings into the death of Steven George Streets, who died in hospital in October 2019.

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In his report, Mr Cooper said there were "inexcusable" delays in the investigation file being provided to his office following the completion of court proceedings relating to the crash.

Tasmania Police was asked if the comment was directed at the organisation, if an explanation was available and if practices will be reviewed or adjusted to prevent such delays in the future, but the questions were not directly answered.

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However, a spokesperson did say police were aware of the report and that the findings would be reviewed.

In his report, Mr Cooper said Mr Streets had traces of cannabis in his body at the time of the crash, but that the crash was caused by inattention on the part of Tony Leigh Burgess.

In a statement at the time, Tasmania Police said the motorcyclist was struck by a Ford utility towing a caravan.

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A police spokesperson said the Ford was travelling westbound on Steele Street "prior to stopping to turn right through the intersection to continue on Steele Street".

"Whilst the utility was making its turn to continue onto Steele Street it has collided with the motorcycle rider."

Burgess was charged with "various offences" following the crash and Mr Streets' death, Mr Cooper said.

"The accident was caused by the inattention of Mr Burgess," Mr Cooper said.

"I am satisfied that Mr Streets had traces of THC (the active constituent of cannabis) in his body at the time of the crash. I am also satisfied that Mr Burgess had alcohol in his body at the time of the crash."

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The coroner said the evidence showed that road conditions, weather, speed nor mechanical deficiency "caused nor contributed to the happening of the crash".

Mr Cooper outlined the serious injuries Mr Streets received included multiple leg fractures, broken ribs and coronary artery damage.

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