Corporal (Remembrance of the Daleks)
From Tardis Wiki, the free Doctor Who reference
A corporal served under Group Captain Ian Gilmore of the Intrusion Countermeasures Group during the Shoreditch Incident in 1963.
He guarded Sergeant Mike Smith in Coal Hill School's cellar after Gilmore had Smith arrested. However, Smith attacked the corporal and knocked him out. When the corporal recovered and informed Gilmore of Smith's escape, he was ordered to search the school for Smith. (TV: Remembrance of the Daleks)