Hannah's research examines vigilante violence, policing, and justice attitudes in contexts of high crime and weak rule of law, with a focus on Latin America. Her collaborative work on these topics includes in-depth qualitative interviews, a lab-in-the-field experiment, and an original dataset on contemporary lynchings in Mexico. She also co-coordinates the Democratic Erosion consortium with Professor Rob Blair, which spans over 50 universities on multiple continents and combines research, teaching and civic engagement related to democratic backsliding and resilience. She earned a BA in Romance Languages & Literatures and Studies of Women, Gender, & Sexuality from Harvard College, magna cum laude.