Gunshot Residue (GSR) Analysis Proficiency Testing

This contract involves the supply of gunshot residue (GSR) test samples designed for evaluating the proficiency of forensic chemists in detecting and analyzing GSR particles using Scanning Electron Microscopy with Energy Dispersive X-ray analysis (SEM-EDX). The purpose is to support forensic analysis accuracy by providing standardized test materials for proficiency testing to ensure reliable identification of gunshot residue in various forensic investigations. Issued by the Attorney General of Ohio, this subcontract falls under the NAICS code 541380, which covers testing laboratories. The contract was posted on January 16, 2026, with responses accepted until December 31, 2026, allowing ample time for interested parties to submit proposals. This initiative contributes to maintaining high standards in forensic chemistry by enabling assessment and validation of laboratory capabilities in GSR analysis.