Sentence was deferred on William Anderson at Jedburgh Sheriff Court for the production of a criminal justice social work report and restriction-of-liberty order assessment.
Anderson pleaded guilty to having images depicting in an explicit and realistic way sexual contact with animals by both adults and children, extreme sexual violence, animal and human torture, mutilation of male and female genitalia, child rape and defecation.
That offence was committed at his home in Glebe Road in Duns between May 28, 2018, and May 1, 2019.
He also admitted two other charges of possession of indecent photos of children and taking, or permitting to be taken, or making indecent photos of children at his home between June 2018 and May 2019.
Anderson will be sentenced on March 30.