Special Agent Cristin O'Malley, OSI Det. 515 senior enlisted leader, demonstrates the use of lights to detect fragments of materials for a Czech military police member on the second day of a multi-day information exchange in Hronsek, Slovakia, April 25, 2023. The information exchange involved OSI and military police from Eastern European nations, such as Slovakia and the Czech Republic. (U.S. Air Force photo by Thomas Brading)