ITALY'S top appeals court has established that sending sea migrants back to Libya is unlawful, a ruling hailed by charities and human rights groups. The Court of Cassation upheld the conviction of the captain of an Italian towboat, Asso 28, who in 2018 rescued 101 migrants from a rubber dinghy and returned them to Libya. The rescue took place in international waters about 105 km off Libya, the court said. Pregnant women and children were among the migrants, it added. The captain - whose name was blacked out in the ruling for privacy reasons - was sentenced to one year's imprisonment for…