A 22-year-old man pleaded guilty in the Supreme Court in Launceston to possession of child exploitation material and bestiality product that he had been accumulating over three years.
Mitchell Thomas Adey, Lilydale will undergo a psychological assessment before Justice Michael Brett sentences him on September 15 at 4.15pm.
He pleaded guilty to having possession on July 22, 2019 of 24,067 files relating to images and videos including those that depict penetrative sexual activity between children and adults.
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He also pleaded guilty to possession of bestiality product, namely 483 videos or images depicting adult humans engaged in sexual acts with animals.
Crown prosecutor Linda Mason submitted that it was in the worst category of offending because of the age of the children and the nature of the content.
She said police had visited a Lilydale property owned by his parents where Adey lived in a separate self contained outbuilding.
They seized two Samsung mobile phones and a computer tower containing two hard drives.
Ms Mason said the equipment contained a total of 149,673 images and videos of which police examined about 34 per cent.
She said it would have taken police up to a month to analyse all the material.
She said some of the material was in the top category (5) which featured adults engaged in sexual acts with children from newborn to 17 years of age.
In a police interview Adey said that he became part of a chat group that shared material.
“I just watch it more out of curiosity it’s just become a bad habit,” he said.
He told police he did not become aroused by the material.
Ms Mason said it was aggravating that much of the material was in video form as well as images.
Defence counsel Evan Hughes said there was a compulsivity about his conduct.
“He is a solitary person, almost reclusive and introverted, and the location of where he lived, a bungalow provided solitude privacy and opportunity,” he said.
He said he had three to four online gaming friends and about three friends through work.
Mr Hughes said Adey was well respected by employers where he had worked in building and construction.
He said that the material was disturbing “even to hardened prosecutors and hardened judges I suspect”.