A sheriff told a Caithness man she found it "unfathomable" how anyone could derive pleasure from watching young children being sexually abused.
Cameron Gray, who lives near Tain, will be sentenced next month after admitting downloading a total of 685 indecent images of children.
Two men have appeared in court charged with the murder of Ross MacGillivray (36) in Inverness just over a week ago.
The chief executive of Rape and Sexual Abuse Service Highland has said the landmark ruling is a welcome development.
Footage from a camera which the cyclist had mounted on his handlebars was shown at Inverness Sheriff Court.
He attacked his pensioner mother and then damaged his grandmother's home during a four-hour stand-off with armed police earlier this year.
National Child Abuse Investigation officers raided a a former Sutherland man's home and found hundreds of child abuse images on his devices.
A sheriff who jailed a domestic abuser for two years said the evidence of three victims was "harrowing" and "some of the worst examples I have seen".
An East Kilbride man caught speeding in north Sutherland has been fined £200.
Sheriff Gary Aitken branded the behaviour as "repugnant and a truly appalling course of dishonest conduct".