Druids did not comprise a priesthood as is commonly thought. They were a segment of society made up of poets, seers, law-givers and bards. Both women and men were druids and undertook approximately 12 to 20 years of training in their respective fields.
The class of judges or law-givers was known as "brehans" and the remnants of their druidic circuits are still found in the British judiciary system. Fair compensation for injustices and the power of truth were the mainstays of druidic law. In a violent and fractured society, the structure of druidic law was both abided and feared.