RAF ALCONBURY, United Kingdom – Members of the 423rd Security Forces Squadron in a retreat ceremony May 17 at RAF Alconbury in honor of Police Week. Security forces squadrons across the 501st Combat Support Wing celebrated National Police Week from May 13 to 18 with events and ceremonies honoring the security forces Airmen, Air Force Office of Special Investigations agents, Ministry of Defense police officers and all other law enforcement officers throughout the world who have made the ultimate sacrifice for their countries. (U.S. Air Force photo by Tech. Sgt. Chrissy Best)