Infante is a lawyer educated at the University of Chile. She obtained a doctorate at the Graduate Institute of International Studies of Geneva in 1979.
She was a tenured professor at the University of Chile, and she also taught at the Diplomatic Academy. She was also director of the Institute of International Studies of the University of Chile and has been a member of various international law organizations.[1]
She was a promoter of the controversial 1998 agreement regarding the Southern Patagonian Ice Field dispute which sought to redraw the boundary already defined 100 years ago by the surveyors of both countries,[2] together with José Miguel Insulza.[3][4] In 2006, in the context of the controversy over the Argentine maps showing the border in the Southern Patagonian Ice Field, she downplayed the issue and stated that it was due to an "outdated version,"[5] a position that remained unchanged over the years.
Infante was in charge of Chile's legal and technical coordination in Peru's lawsuit for maritime boundaries, filed on July 9, 2009, and co-representative of Chile before the International Court of Justice (ICJ) in this Peru-Chile case.[6]
Infante served as National Director of Borders and Limits of Chile, as part of the Ministry of Foreign Affairs.[7]
In 2020, she was elected as a judge of the International Tribunal for the Law of the Sea.[8]
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