Article 41-bis prison regime

In Italian law, Article 41-bis of the Prison Administration Act, also known as carcere duro ("hard prison regime"), is a provision that allows the Minister of Justice or the Minister of the Interior to suspend certain prison regulations and impose practically complete isolation upon a prisoner. It is used against people imprisoned for particular crimes, such as Mafia-type association under 416-bis (Associazione di tipo mafioso), drug trafficking, homicide, aggravated robbery and extortion, kidnapping, terrorism, and attempting to subvert the constitutional system.

Source: Wikipedia — Article 41-bis prison regime (CC BY-SA 4.0)