RDNA study of county-level suicide data in 4 U.S. states that passed 'red flag' laws (removing firearms from those deemed a risk to themselves or others) and 8 that did not found that, in the year following the law's passage, firearm suicides decreased by 3.79 per 100,000 populations. Rates of suicide by other means did not decrease.
Summary: https://medicalxpress.com/news/2026-01-laws-guns-distressed-individuals-suicides.html
Original paper: https://jamanetwork.com/journals/jama-health-forum/fullarticle/2844373
Laws to keep guns away from distressed individuals reduce suicides, suggests study
In 2023, more than half of all suicide deaths in the United States involved firearms. "Red flag" laws—also called Extreme Risk Protection Orders or ERPOs—are designed to reduce these deaths by authorizing temporary firearm removal from individuals deemed at high risk of harming themselves or others. ERPO laws had been implemented in 21 states and the District of Columbia as of February 2025.