Code 17

From The Stargate Omnipedia

S.G.C. security code requiring the isolation ward to be under constant guard and video surveillance. This procedure is highly advised if the individual confined is believed to be possessed by a Goa'uld. Only medical personnel are authorized for access.

KEY EPISODE

Lifeboat - Hammond orders a Code 17 when he believes Daniel Jackson has been compromised after returning from an alien world.