The alarming number of students who are suspended, expelled and arrested for minor school offenses was the topic of testimony at a Senate committee hearing in Washington on Wednesday.

Speaking at a Senate Judiciary Subcommittee on the Constitution, Civil Rights and Human RightsJudith Browne Dianis, co-director of the Advancement Project, discussed how the number of students in the so-called school-to-prison pipeline are affected by being arrested and incarcerated.