"There are civilians in there don't press the alarm!"
Geoff Carlson was Deputy Governor at Woodridge Men's Prison, and an old friend of Colleen Powell, which nearly develops into an affair during the rehearsals for the joint charity concert (318). They are brought back together again when Wentworth moves to Woodridge after the fire (327). He invites Colleen to dinner but Colleen decides not to sample any more of his neck massages. Last seen in (332) farewelling the Wentworth prisoners.