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All of the pet portraits are uploaded to Hercule Van Wolkwinkle's social media pages in return for a discretionary donation to one of his two chosen charities: Turning Tides, a homelessness charity, and StreetVet.

Wikipedia has strict rules for photography and copyright, so the pictures uploaded must be a contributor's own, freely licenced or in the public domain.

Police are urging anyone with images of the incident to upload them as evidence.

"This gap could mean that people who have had their custody image previously taken, are not being detected on future probe images uploaded by Police Scotland, which could lead to crimes not being detected."

"People uploading misogyny, hate, misinformation, and that is just the tip of the iceberg," she said.