The ‘prisoners’ were arrested and held in the detention cells of the Palo Alto Police Department, then escorted to the ‘Stanford County Jail’. Upon arrival, they were stripped naked, deloused, and given a uniform. The uniform was a dress with no underclothes, a chain around their ankle, stocking caps to mimic a prisoner’s shaved head, and they were each assigned a prison number which became their new 'name'. The 'guards' had a uniform of khaki, a baton, reflective sunglasses (to make them more anonymous), and a whistle around their neck.