dead check
v. phr.— «Once reaching the caves, Boada teamed up with Sgt. Robert R. Campbell, a squad leader, and began searching the different caves with the other Marines. This was when Marines heard Lance Cpl. Nicholas C. Kirven identify a dead body. He called out and Cpl. Richard P. Schoener came down to provide security for a dead check.» —“Marine recalls Silver Star actions” in Marine Corps Base Hawaii, Kaneohe Bay Department of Defense U.S. Marine Corps News Feb. 10, 2006. (source: Double-Tongued Dictionary)