Sandro Tomassini, lawyer, Pleader in Cassation, graduated to the Will Rogers High School of Tusla, Oklahoma, in USA in 1967, and in 1968 to the classical lycèe of Terni "G.C.Tacito" and conferred a degree on jurisprudence to the Perugia's University in 1972.
Assistant of criminal proceeding to the Institute of public law, in 1975 completed a stage to Europe's Council of Strasburgo, working to the European Committee of the human's rights and then to the Menagement of the Legal Affairs.

For many years taught law and economic disciplines in the high schools.
In 1978 he exceeded the exam attorney an moved to Terni.
From 1989 to 1999 carried on the function of judge of the Peace in Terni.
From many years cooperates with the Unitre teaching history, philosophy and sociology of the law, comparative and constitutional law.