Player Embed Code: <iframe width='500' height='300' scrolling='no' frameborder='0' style='border: none; overflow: hidden; width: 500px; height: 300px;' allowtransparency='true' src='https://www.dvidshub.net/video/embed/888337'></iframe> Download Embed Share 143rd MPD LEX Montana National Guard Public Affairs Office June 15, 2023 | 1:10 The 143rd Military Police Detachment conducted a Law Enforcement Exercise (LEX) on Fort Harrison, June 11-15. The LEX gave the simulated experience of patrolling, responding to calls, and working as a unit.