Since 2000, Indiana has arrested 18 Hoosiers with human immunodeficiency virus (HIV) on charges of donating plasma, according to a report released this week.

None were charged under provisions penalizing actual transmission. But sixteen were convicted of at least one HIV-related crime. That’s more than were documented in 13 other states examined in previous studies, per the report.

Researchers with the UCLA’s Law School’s Williams Institute collaborated with Indiana’s HIV Modernization Movement to push Hoosier lawmakers to ditch the bans.