Karate instructor caught with 'severe' indecent images of children
David McAusland was caught after police raided his Dundee home in September last year.
A karate instructor was found with a stash of indecent images of children and beastiality pictures.
David McAusland, who also taught kickboxing until he was caught with the horde, which included images at the highest level depicting the most horrific abuse, was caught after police raided his home in September last year.
The court heard McAusland, who taught children, had distributed the images to other paedophiles using special file sharing software.
His archives, one of which was disguised as a "karate workout" film, had been sent to other people more than 100 times.
In total, 2736 images and 39 videos were found across his computer system, tablet and USB sticks.
That included images of children as young as six being abused as well as images of sadism and beastiality.
Police also found seven videos on his computer. One of those films, which was downloaded just three days before his home was raided, showed women having sex with dogs.
A sheriff told McAusland, who taught martial arts to children aged five upwards, that a jail term was a "distinct possibility".
Fiscal depute Douglas Wiseman told the court: "When he was interviewed by police he initially admitted owning the computer equipment but denied accessing any pornographic sites.
"He later admitted downloading the images. He confirmed he was aware of the Copine scale used to measure the severity of images.
"He also confirmed that he had access to children at the karate and kickboxing clubs he was involved with. He also confirmed that he had taught children aged from five upwards."
McAusland, 50, of South Road, Dundee, pleaded guilty on indictment to charges of downloading, possessing and distributing indecent images of children between May 8, 2011, and September 17, 2013.
He further admitted possessing extreme pornography between July 29, 2013, and September 15, 2013.
Kevin Hampton, defending, said: "Custody is very much a live issue here. He's been on bail throughout and I'd ask that be continued while reports are prepared."
Sheriff Elizabeth Munro deferred sentence until August for social work background reports and released McAusland on bail meantime.
She said: "A custodial sentence is a distinct possibility."