A female law professor with no political career is Portugal's new head of the police and immigration services, replacing an interior minister who quit the government amid a corruption scandal.

Anabela Rodrigues, a former head of Coimbra University's law faculty, was appointed to the government Tuesday. She is the first woman to serve as interior minister in Portugal.

Her predecessor, Miguel Macedo, announced his resignation Sunday after the arrest of several senior officials overseen by his department, including the head of the country's immigration service.

Police are investigating the granting of residence permits to wealthy investors from outside the European Union. Portugal offers "golden visas" to non-EU citizens who invest large amounts.

No further details were available because the case is subject to Portugal's judicial secrecy law.