“If I’m a lawyer sitting in court, week after week, watching juries come in and I’m not seeing Black people, I’m not seeing Latinx people, and I know what their population is in my county, I know something is wrong,” said Elizabeth Semel, an expert on discriminatory jury practices and co-director of the Death Penalty Clinic at the University of California, Berkeley School of Law. “But how can I figure it out without the data? I can’t.”