Can the guards at the Tomb of the Unknown Soldier drink?

Can the guards at the Tomb of the Unknown Soldier drink? Other requirements of the Guard: They must commit 2 years of life to guard the tomb, live in a barracks under the tomb, and cannot drink any alcohol on or off duty for the rest of their lives. They cannot swear in public for the rest of their lives and cannot disgrace the uniform {fighting} or the tomb in any way.

Other requirements of the Guard: They must commit 2 years of life to guard the tomb, live in a barracks under the tomb, and cannot drink any alcohol on or off duty for the rest of their lives. They cannot swear in public for the rest of their lives and cannot disgrace the uniform {fighting} or the tomb in any way.