Gisela Pérez de Acha reports on extremism, disinformation and environmental issues for the Investigative Reporting Program. She co-teaches the Open-Source Investigative Reporting class with Prof. David Barstow and J.D. PhD Alexa Koenig: the country’s first multidisciplinary investigative reporting course using open source intelligence (OSINT) techniques at a university. Gisela is also a human rights lawyer, an open source researcher at Berkeley Law’s Human Rights Center Investigations Lab. Born and raised in Mexico, Pérez de Acha speaks fluent Spanish, English, French and Portuguese. She has a master’s degree from Berkeley Journalism.