The Current Status of GSR Examinations | FBI: Law Enforcement Bulletin
Gunshot residue examinations have continued to improve through research, advancements, and communication.
leb.fbi.gov
Tests show that people standing within 3 feet to the side of a shooter may have GSR on their hands,
Y’all should read up on the science about GSR. A person doesn’t have to be very close at all to test positive. There didn’t have to be a struggle for kelsey to get GSR on her hands.