These members were selected from the Areiopagos and remained in charge of the courts until about 403 or 402 BC, when they were replaced by dikastai, democratically selected jurors. With the emergence of the ephetai came a new age of dikastic courts. Previous courts were replaced with one, which heard every kind of case. Regular public prosecutions were referred to as a graphe, and a dike was a private prosecution. Graphe translates literally into a writing, and in this case it means a written indictment .
Dike translates literally into prosecution .
To qualify as a member of the dikastai, one needed to meet three requirements. The potential dikastes needed to have full citizen rights, be at least thirty years old, and he had to be one of the six thousand fully qualified citizens that took the dikastic oath at the start of that year. For normal cases the dikastai was made up of about 500 members, and for private cases either 200 or 400, depending on the sum involved. Fulfilling the requirements of the dikastai did not require the individual to then be available to try cases every day. Each panel of dikastai was simply made up of those legitimate dikastai members that showed up that day.