There is a substantial amount of debate over whether or not the Celts practiced human sacrifice. Most of the historical sources about whether or not the Celts practiced human sacrifice came from Greek and Roman historians. These historians had every reason to misrepresent the practices of the Celts in order to turn people against them and portray them as a barbaric culture. One of the most intriguing accounts given about the Celts came from the Greek geographer and philosopher Strabo.
Strabo related that the Celts would strike a man who was picked for sacrifice in the back with a sword. The druids would then watch the death-spasms of the man and make predictions. The Druids were required to be present for any sacrifice as it was supposed to be a spiritual event. This type of account was collaborated with Roman and Irish histories.
Another more spectacular account given about the type of sacrifices performed by the Celts included a story about the Wicker Man. In the account, the Celts would create a huge figure that was made out of straw and wood. They would then throw any number of animals and men onto the structure and set it on fire. It was claimed that the men would be trapped within the structure and be unable to escape as they were burned alive. The Greek is account is the only one that accounts this use of the Wicker Man.
Historians did not put much credence to these accounts, at least not until the discovery of a male body in Lindow bog. The man was found to have been strangled, hit on the head and had his throat cut in “very quick order.” The man was then surrendered to the bog. The discovery of the body has been among the first evidence suggesting the accounts by the Greeks may have had some truth to them.