Dog fighting is as secretive as it is barbaric.
The people behind the illegal bloodsport carefully conceal their identities, fearful of arrest and prosecution. However, one dog fighter's IT mix-up led an undercover BBC investigation to unmask some of those involved in one of Europe's largest dog fighting networks.
The BBC has tracked fighting kennels to unlikely places in the UK – from a busy housing estate to the grounds of a stately home.
A simple mis-click from one member of a top-secret online dog fighting forum exposed the brutal reality of today's dog fighting. The leak revealed graphic match reports documenting fight after fight, injured animal after injured animal.
A vast haul of intelligence was quickly harvested by the animal welfare charities, the League Against Cruel Sports (LACS) and the Ulster Society for the Prevention of Cruelty to Animals (USPCA).
That was the first glimpse of a highly secretive international dog fighting syndicate - one which the BBC has spent the past six months investigating and exposing.
I can't really put into words actually, it was just golden, said Russ Middleton, a former police officer turned Head of Intelligence for LACS.
The law across the UK bans not only fighting, but also owning fighting dogs, training them to fight, trading animals and even filming fights without good reason.
Prior reports from the League Against Cruel Sports reveal the alarming frequency of dog fighting incidents within the UK. Reports of more than 600 instances since 2024 have increased significantly due to the underground nature of these fights.
The investigation uncovered several dog fighting kennels, revealing their presence hidden within residential areas and even on prestigious estate grounds.
From the identification of Boneyard Kennels, which operates in Northern Ireland, to the infiltration of European networks, the BBC's efforts expose a complex web of animal cruelty.
A troubling yet critical aspect of this story is the journey of one of the dogs, Ruby. Once involved in fights, Ruby is now undergoing rehabilitation in the Netherlands, highlighting both the plight of fighting dogs and the potential for recovery.
The investigation is ongoing, shedding light on the ruthless reality of dog fighting and bringing attention to the complexities of animal welfare and legal enforcement in combating such heinous activities.